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Document and Entity Information - shares	3 Months Ended
Document and Entity Information - shares	Sep. 30, 2016	Oct. 31, 2016
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q1
Trading Symbol	MRCY
Entity Registrant Name	MERCURY SYSTEMS INC
Entity Central Index Key	0001049521
Current Fiscal Year End Date	--06-30
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		41,014,934

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Jun. 30, 2016
Current assets:
Cash and cash equivalents	$ 77,314	$ 81,691
Accounts receivable, net of allowance for doubtful accounts of $140 and $92 at September 30, 2016 and June 30, 2016, respectively	62,158	73,427
Unbilled receivables and costs in excess of billings	23,574	22,467
Inventory	58,443	58,284
Prepaid income taxes	2,804	3,401
Prepaid expenses and other current assets	7,665	6,122
Total current assets	231,958	245,392
Restricted cash	0	264
Property and equipment, net	31,376	28,337
Estimated fair value of goodwill	344,525	344,027
Intangible assets, net	112,071	116,673
Other non-current assets	2,231	1,803
Total assets	722,161	736,496
Current liabilities:
Accounts payable	19,283	26,723
Accrued expenses	8,970	10,273
Accrued compensation	14,355	13,283
Deferred revenues and customer advances	3,566	7,365
Total current liabilities	56,174	67,644
Deferred income taxes	9,575	11,842
Income taxes payable	700	700
Long-term debt	180,246	182,275
Other non-current liabilities	927	991
Total liabilities	247,622	263,452
Commitments and contingencies (Note L)
Shareholders' equity:
Preferred stock, $0.01 par value; 1,000,000 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.01 par value; 85,000,000 shares authorized; 39,053,991 and 38,675,340 shares issued and outstanding at September 30, 2016 and June 30, 2016, respectively	391	387
Additional paid-in capital	355,164	357,500
Retained earnings	118,029	114,210
Accumulated other comprehensive income	955	947
Total shareholders' equity	474,539	473,044
Total liabilities and shareholders' equity	722,161	736,496
Long-term Debt, Current Maturities	$ 10,000	$ 10,000

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2016	Jun. 30, 2016
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 140	$ 92
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	85,000,000	85,000,000
Common Stock, Shares, Issued	39,053,991	38,675,340
Common stock, shares outstanding	39,053,991	38,675,340

Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Net revenues	$ 87,649	$ 58,409
Cost of revenues	48,205	30,107
Gross margin	39,444	28,302
Operating expenses:
Selling, general and administrative	17,544	12,126
Research and development	12,838	8,866
Amortization of intangible assets	4,602	1,713
Restructuring and other charges	297	338
Acquisition costs and other related expenses	421	2,128
Total operating expenses	35,702	25,171
Income from operations	3,742	3,131
Interest income	40	24
Interest expense	(1,822)	(2)
Other income, net	600	71
Income before income taxes	2,560	3,224
Tax (benefit) provision	(1,259)	368
Net income	$ 3,819	$ 2,856
Basic net earnings per share (in dollars per share)	$ 0.10	$ 0.09
Diluted net earnings per share (in dollars per share)	$ 0.10	$ 0.08
Weighted-average shares outstanding:
Basic (in shares)	38,865	32,778
Diluted (in shares)	39,865	33,616
Comprehensive income:
Net income	$ 3,819	$ 2,856
Foreign currency translation adjustments	8	17
Total comprehensive income	$ 3,827	$ 2,873

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income	$ 3,819	$ 2,856
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	7,320	3,301
Stock-based compensation expense	3,632	2,702
Benefit for deferred income taxes	(2,606)	(412)
Non-cash interest expense	471	0
Other non-cash items	(51)	(121)
Changes in operating assets and liabilities, net of effects of businesses acquired:
Accounts receivable, unbilled receivable, and cost in excess of billings	10,111	(12,781)
Inventory	(104)	(2,739)
Prepaid income taxes	597	706
Prepaid expenses and other current assets	(1,553)	3,378
Other non-current assets	(86)	37
Accounts payable and accrued expenses	(7,377)	9,017
Deferred revenues and customer advances	(3,816)	659
Income taxes payable	(35)	0
Other non-current liabilities	(39)	(21)
Net cash provided by operating activities	10,283	6,582
Cash flows from investing activities:
Purchases of property and equipment	(6,050)	(1,867)
Increase in other investing activities	(111)	(185)
Net cash used in investing activities	(6,161)	(2,052)
Cash flows from financing activities:
Proceeds from employee stock plans	80	629
Payments for retirement of common stock	(6,128)	(3,708)
Payments of capital lease obligations	(2,500)	0
Net cash used in financing activities	(8,548)	(3,079)
Effect of exchange rate changes on cash and cash equivalents	49	36
Net (decrease) increase in cash and cash equivalents	(4,377)	1,487
Cash and cash equivalents at beginning of period	81,691	77,586
Cash and cash equivalents at end of period	77,314	79,073
Cash paid during the period for:
Interest	1,351	2
Income taxes	717	65
Supplemental disclosures-non-cash activities:
Issuance of restricted stock awards to employees	$ 15,002	$ 7,114

Description of Business	3 Months Ended
Description of Business	Sep. 30, 2016
Accounting Policies [Abstract]
Description of Business	Description of Business Mercury Systems, Inc. (the “Company” or “Mercury”) is a leading commercial provider of secure processing subsystems designed and made in the U.S.A. Optimized for customer and mission success, its solutions power a wide variety of critical defense and intelligence programs. Headquartered in Chelmsford, Massachusetts, it is pioneering a next-generation defense electronics business model specifically designed to meet the industry's current and emerging technology and business needs. The Company delivers affordable innovative solutions, rapid time-to-value and service and support to its defense prime contractor customers. The Company's products and solutions have been deployed in more than 300 programs with over 25 different defense prime contractors. Key programs include Aegis, Patriot, Surface Electronic Warfare Improvement Program ("SEWIP"), Gorgon Stare, Predator, F-35, Reaper and Digital Electronic Warfare System ("DEWS"). The Company's organizational structure allows it to deliver capabilities that combine technology building blocks and deep domain expertise in the defense sector.

Summary of Significant Accounting Policies

3 Months Ended

Sep. 30, 2016

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

BASIS OF PRESENTATION

The accompanying consolidated financial statements have been prepared by the Company in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions to the Form 10-Q and Article 10 of Regulation S-X. Certain information and footnote disclosures, normally included in annual consolidated financial statements have been condensed or omitted pursuant to those rules and regulations; however, in the opinion of management the financial information reflects all adjustments, consisting of adjustments of a normal recurring nature, necessary for fair presentation. These consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes for the fiscal year ended June 30, 2016 which are contained in the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on August 16, 2016. The results for the three months ended September 30, 2016 are not necessarily indicative of the results to be expected for the full fiscal year.

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation.

USE OF ESTIMATES

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.

RECLASSIFICATION

The Company has restated the income tax provision amount for the three months ended September 30, 2015 for the adoption of FASB Accounting Standards Update ("ASU") 2016-09, Improvements to Employee Share-Based Payment Accounting. The Company’s Consolidated Statements of Operations and Comprehensive Income and Consolidated Statements of Cash Flows have been updated to reflect this change.

The Company included costs related to the sustainment of its product portfolio as research and development expense, which was previously included as costs of revenue on the Consolidated Statements of Operations and Comprehensive Income. For comparative purposes, for the three months ended September 30, 2015, the Company has reclassified $773 from costs of revenues to research and development expense.

BUSINESS COMBINATIONS

The Company utilizes the acquisition method of accounting under FASB ASC 805, Business Combinations, (“FASB ASC 805”), for all transactions and events which it obtains control over one or more other businesses, to recognize the fair value of all assets and liabilities acquired, even if less than one hundred percent ownership is acquired, and in establishing the acquisition date fair value as the measurement date for all assets and liabilities assumed. The Company also utilizes FASB ASC 805 for the initial recognition and measurement, subsequent measurement and accounting, and disclosure of assets and liabilities arising from contingencies in business combinations.

REVENUE RECOGNITION

The Company relies upon FASB ASC 605, Revenue Recognition, to account for its revenue transactions. Revenue is recognized upon shipment provided that title and risk of loss have passed to the customer, there is persuasive evidence of an arrangement, the sales price is fixed or determinable, collection of the related receivable is reasonably assured, and customer acceptance criteria, if any, have been successfully demonstrated. Out-of-pocket expenses that are reimbursable by the customer are included in revenue and cost of revenue.

Certain contracts with customers require the Company to perform tests of its products prior to shipment to ensure their performance complies with the Company’s published product specifications and, on occasion, with additional customer-requested specifications. In these cases, the Company conducts such tests and, if they are completed successfully, includes a written confirmation with each order shipped. As a result, at the time of each product shipment, the Company believes that no further customer testing requirements exist and that there is no uncertainty of acceptance by its customer.

The Company uses FASB ASU No. 2009-13 (“FASB ASU 2009-13”), Multiple-Deliverable Revenue Arrangements. FASB ASU 2009-13 establishes a selling price hierarchy for determining the selling price of a deliverable, which includes: (1) vendor-specific objective evidence (“VSOE”) if available; (2) third-party evidence (“TPE”) if VSOE is not available; and (3) best estimated selling price (“BESP”), if neither VSOE nor TPE is available. Additionally, FASB ASU 2009-13 expands the disclosure requirements related to a vendor’s multiple-deliverable revenue arrangements.

The Company enters into multiple-deliverable arrangements that may include a combination of hardware components, related integration or other services. These arrangements generally do not include any performance-, cancellation-, termination- or refund-type provisions. Total revenue recognized under multiple-deliverable revenue arrangements was 35% and 48% of total revenues in the three months ended September 30, 2016, and 2015, respectively.

In accordance with the provisions of FASB ASU 2009-13, the Company allocates arrangement consideration to each deliverable in an arrangement based on its relative selling price. The Company generally expects that it will not be able to establish VSOE or TPE due to limited single element transactions and the nature of the markets in which the Company competes, and, as such, the Company typically determines its relative selling price using BESP. The objective of BESP is to determine the price at which the Company would transact if the product or service were sold by the Company on a standalone basis.

The Company's determination of BESP involves the consideration of several factors based on the specific facts and circumstances of each arrangement. Specifically, the Company considers the cost to produce the deliverable, the anticipated margin on that deliverable, the selling price and profit margin for similar parts, the Company’s ongoing pricing strategy and policies (as evident from the price list established and updated by management on a regular basis), the value of any enhancements that have been built into the deliverable and the characteristics of the varying markets in which the deliverable is sold.

The Company analyzes the selling prices used in its allocation of arrangement consideration at a minimum on an annual basis. Selling prices will be analyzed on a more frequent basis if a significant change in the Company’s business necessitates a more timely analysis or if the Company experiences significant variances in its selling prices.

Each deliverable within the Company’s multiple-deliverable revenue arrangements is accounted for as a separate unit of accounting under the guidance of FASB ASU 2009-13 if both of the following criteria are met: the delivered item or items have value to the customer on a standalone basis; and for an arrangement that includes a general right of return relative to the delivered item(s), delivery or performance of the undelivered item(s) is considered probable and substantially in the control of the Company. The Company's revenue arrangements generally do not include a general right of return relative to delivered products. The Company considers a deliverable to have standalone value if the item is sold separately by the Company or another vendor or if the item could be resold by the customer.

Deliverables not meeting the criteria for being a separate unit of accounting are combined with a deliverable that does meet that criterion. The appropriate allocation of arrangement consideration and recognition of revenue is then determined for the combined unit of accounting.

The Company also engages in long-term contracts for development, production and services activities which it accounts for consistent with FASB ASC 605-35, Accounting for Performance of Construction-Type and Certain Production-Type Contracts, and other relevant revenue recognition accounting literature. The Company considers the nature of these contracts and the types of products and services provided when determining the proper accounting for a particular contract. Generally for fixed-price contracts, other than service-type contracts, revenue is recognized primarily under the percentage of completion method or, for certain short-term contracts, by the completed contract method. Revenue from service-type fixed-price contracts is recognized ratably over the contract period or by other appropriate input or output methods to measure service provided, and contract costs are expensed as incurred. The Company establishes billing terms at the time project deliverables and milestones are agreed. The risk to the Company on a fixed-price contract is that if estimates to complete the contract change from one period to the next, profit levels will vary from period to period. For time and materials contracts, revenue reflects the number of direct labor hours expended in the performance of a contract multiplied by the contract billing rate, as well as reimbursement of other billable direct costs. For all types of contracts, the Company recognizes anticipated contract losses as soon as they become known and estimable.

The Company also considers whether contracts should be combined or segmented in accordance with the applicable criteria under GAAP. The Company combines closely related contracts when all the applicable criteria under GAAP are met. The combination of two or more contracts requires judgment in determining whether the intent of entering into the contracts was effectively to enter into a single project, which should be combined to reflect an overall profit rate. Similarly, the Company may separate a project, which may consist of a single contract or group of contracts, with varying rates of profitability, only if the applicable criteria under GAAP are met. Judgment also is involved in determining whether a single contract or group of contracts may be segmented based on how the arrangement was negotiated and the performance criteria. The decision to combine a group of contracts or segment a contract could change the amount of revenue and gross profit recorded in a given period.

The use of contract accounting requires significant judgment relative to estimating total contract revenues and costs, including assumptions relative to the length of time to complete the contract, the nature and complexity of the work to be performed, anticipated increases in wages and prices for subcontractor services and materials, and the availability of subcontractor services and materials. The Company’s estimates are based upon the professional knowledge and experience of its engineers, program managers and other personnel, who review each long-term contract monthly to assess the contract’s schedule, performance, technical matters and estimated cost at completion. Changes in estimates are applied retrospectively and when adjustments in estimated contract costs are identified, such revisions may result in current period adjustments to earnings applicable to performance in prior periods.

Contract costs also may include estimated contract recoveries for matters such as contract changes and claims for unanticipated contract costs. The Company records revenue associated with these matters only when the amount of recovery can be estimated reliably and realization is probable.

The Company defines service revenues as revenue from activities that are not associated with the design, development, production, or delivery of tangible assets, software or specific capabilities sold. Examples of the Company's service revenues include: analyst services and systems engineering support, consulting, maintenance and other support, testing and installation. The Company combines its product and service revenues into a single class as service revenues are less than 10 percent of total revenues.

The Company does not provide its customers with rights of product return, other than those related to warranty provisions that permit repair or replacement of defective goods. The Company accrues for anticipated warranty costs upon product shipment. Revenues from product royalties are recognized upon invoice by the Company. Additionally, all revenues are reported net of government assessed taxes (e.g., sales taxes or value-added taxes).

WEIGHTED-AVERAGE SHARES

Weighted-average shares were calculated as follows:



	Three Months Ended September 30,
	2016	2015
Basic weighted-average shares outstanding	38,865	32,778
Effect of dilutive equity instruments	1,000	838
Diluted weighted-average shares outstanding	39,865	33,616

Equity instruments to purchase 22 and 356 shares of common stock were not included in the calculation of diluted net earnings per share for the three months ended September 30, 2016, and 2015, respectively, because the equity instruments were anti-dilutive.

September 30, 2016 basic shares outstanding include the impact of 5,175 shares from the underwritten common stock public offering on April 4, 2016.

Acquisitions

3 Months Ended

Sep. 30, 2016

Business Combinations [Abstract]

Acquisitions

CARVE-OUT BUSINESS AQUISITION

On March 23, 2016, the Company and Microsemi Corporation (“Microsemi”) entered into a Stock Purchase Agreement, pursuant to which, Microsemi agreed to sell all the membership interests in its custom microelectronics, RF and microwave solutions and embedded security operations (the "Carve-Out Business”) to the Company for $300,000 in cash on a cash-free, debt-free basis, subject to a working capital adjustment. On May 2, 2016, the transaction closed and the Company acquired the Carve-Out Business. Pursuant to the terms of the Stock Purchase Agreement, all outstanding Carve-Out Business employee stock awards that were unvested at the closing were replaced by Mercury. The replacement stock awards granted were determined based on a conversion ratio provided in the Stock Purchase Agreement. Mercury funded the acquisition with a combination of a new $200,000 bank term loan facility (see Note I) and cash on hand, which included net proceeds of approximately $92,788 raised from an underwritten common stock public offering.

The following table presents the net purchase price and the preliminary fair values of the assets and liabilities of the Carve-Out Business:



	Amounts
Consideration transferred
Cash paid at closing	$	300,000
Value allocated to replacement awards	407
Net purchase price	$	300,407

Estimated fair value of tangible assets acquired and liabilities assumed
Accounts receivable and cost in excess of billings	$	17,023
Inventory	25,477
Fixed assets	13,996
Other current and non-current assets	524
Current liabilities	(4,677		)
Non-current deferred tax liabilities	(25,477		)
Estimated fair value of net tangible assets acquired	26,866
Estimated fair value of identifiable intangible assets	102,800
Estimated goodwill	170,741
Estimated fair value of assets acquired	$	300,407
Net purchase price	$	300,407

The amounts above represent the preliminary fair value estimates as of September 30, 2016 and are subject to subsequent adjustment as the Company obtains additional information during the measurement period and finalizes its fair value estimates. The preliminary identifiable intangible asset estimates include customer relationships of $70,900, completed technology of $29,700 and backlog of $2,200. Any subsequent adjustments to these fair value estimates occurring during the measurement period will result in an adjustment to goodwill.

The goodwill of $170,741 largely reflects the potential synergies and expansion of the Company's offerings across product lines and markets complementary to the Company's existing products and markets. The Carve-Out Business provides the Company with additional capability and expertise related to embedded security custom microelectronics, and microwave and radio frequency technology. The acquisition is directly aligned with the Company's strategy of expanding its capabilities, services and offerings along the sensor processing chain. The goodwill from this acquisition is reported under the Carve-Out Business reporting unit. As of September 30, 2016, the Company had $29,266 of goodwill deductible for tax purposes.

The revenues and net loss from the Carve-Out Business included in the Company's consolidated results for the three months ended September 30, 2016 were $24,311 and $(2,419), respectively.

Pro Forma Financial Information

The following tables summarize the supplemental statements of operations information on an unaudited pro forma basis as if the Carve-Out Business acquisition had occurred on July 1, 2015:



	Three Months ended September 30,
	2015
Pro forma net revenues	$	83,103
Pro forma net income	$	2,039
Basic pro forma net earnings per share	$	0.05
Diluted pro forma net earnings per share	$	0.05

The unaudited pro forma results presented above are for illustrative purposes only for the applicable periods and do not purport to be indicative of the actual results which would have occurred had the transaction been completed as of the beginning of the period, nor are they indicative of results of operations which may occur in the future.

LEWIS INNOVATIVE TECHNOLOGIES ACQUISITION

On December 16, 2015, the Company entered into a share purchase agreement (the “Share Purchase Agreement”) with Lewis Innovative Technologies, Inc. (“LIT”) and the holders of the equity interests of LIT. Pursuant to the Share Purchase Agreement, the Company completed its purchase of all of the equity interests in LIT, and LIT became a wholly-owned subsidiary of the Company. Based in Decatur, Alabama, LIT provides advanced security technology and development services necessary for protecting systems critical to national security while meeting strict Department of Defense (“DoD”) program protection requirements.

The Company acquired LIT for a cash purchase price of $9,756. The Company funded the purchase with cash on hand. The purchase price was subject to a post-closing adjustment based on a determination of LIT's closing net working capital. In accordance with the Share Purchase Agreement, $1,000 of the purchase price was placed into escrow to support the post-closing working capital adjustment and the sellers' indemnification obligations. The escrow is available for indemnification claims through June 16, 2017. The Company acquired LIT free of debt.

The preliminary fair value estimates of LIT's assets and liabilities have not changed since June 30, 2016. The fair value estimates are subject to subsequent adjustment as the Company obtains additional information until the measurement period ends on December 15, 2016.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

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+ Details

Fair Value of Financial Instruments

3 Months Ended

Sep. 30, 2016

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

The following table summarizes the Company’s financial assets measured at fair value on a recurring basis at September 30, 2016:



	Fair Value Measurements
	September 30, 2016		Level 1		Level 2		Level 3
Assets:
Certificates of deposit	$	30,104	$	—	$	30,104	$	—
Total	$	30,104	$	—	$	30,104	$	—

The carrying values of cash and cash equivalents, including money market funds, restricted cash, accounts receivable and payable, and accrued liabilities approximate fair value due to the short-term maturities of these assets and liabilities. The fair value of the Company’s certificates of deposit are determined through quoted prices for identical or similar instruments in markets that are not active or are directly or indirectly observable. The Company determined the face value of its long-term debt approximates fair value at September 30, 2016 due to the recent issuance and stability of interest rates during this period. The cost-method investment, which is presented within other non-current assets in the accompanying consolidated balance sheets, does not have a readily determinable fair value, as such the Company recorded the investment at cost and will continue to evaluate the asset for impairment on a quarterly basis.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Inventory

3 Months Ended

Sep. 30, 2016

Inventory Disclosure [Abstract]

Inventory

Inventory is stated at the lower of cost (first-in, first-out) or market value, and consists of materials, labor and overhead. On a quarterly basis, the Company uses consistent methodologies to evaluate inventory for net realizable value. Once an item is written down, the value becomes the new inventory cost basis. The Company reduces the value of inventory for excess and obsolete inventory, consisting of on-hand inventory in excess of estimated usage. The excess and obsolete inventory evaluation is based upon assumptions about future demand, history, product mix and possible alternative uses. Inventory was comprised of the following:



	September 30, 2016		June 30, 2016
Raw materials	$	33,603	$	31,205
Work in process	15,401		15,967
Finished goods	9,439		11,112
Total	$	58,443	$	58,284

There are no amounts in inventory relating to contracts having production cycles longer than one year.

Goodwill

3 Months Ended

Sep. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

The following table sets forth the changes in the carrying amount of goodwill by reporting unit for the three months ended September 30, 2016:



	MCE		MDS		Carve-out Business		Total
Balance at June 30, 2016	$	134,378	$	39,406	$	170,243	$	344,027
Goodwill adjustment for the Carve-Out Business acquisition	—		—		498		498
Balance at September 30, 2016	$	134,378	$	39,406	$	170,741	$	344,525

During the three months ended September 30, 2016, the Company recorded a $498 adjustment to goodwill related to the acquisition of the Carve-out Business. The adjustment was the result of changes in fair value estimates derived from additional information obtained during the measurement period.

In the three months ended September 30, 2016, there were no triggering events, as defined by FASB ASC 350, Intangibles - Goodwill and Other, which required an interim goodwill impairment test. The Company performs its annual goodwill impairment test in the fourth quarter of each fiscal year.

Restructuring Plan

3 Months Ended

Sep. 30, 2016

Restructuring and Related Activities [Abstract]

Restructuring Plan

Restructuring

The following table presents the detail of activity for the Company’s restructuring plans:



	Severance & Related			Facilities & Other			Total
Restructuring liability at June 30, 2016	$	190		$	736		$	926
Restructuring and other charges	214			83			297
Cash paid	(63		)	(272		)	(335		)
Restructuring liability at September 30, 2016	$	341		$	547		$	888

During the three months ended September 30, 2016, the Company incurred net restructuring and other charges of $297. In the event that the Company is unable to sublease the unoccupied portion of its headquarters complex in Chelmsford, Massachusetts, it will incur nominal, periodic restructuring charges through fiscal 2017.

All of the restructuring and other charges are classified as operating expenses in the consolidated statements of operations and comprehensive income and any remaining severance obligations are expected to be paid within the next twelve months. The restructuring liability is classified as accrued expenses in the consolidated balance sheets.

Income Taxes	3 Months Ended
Income Taxes	Sep. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company recorded an income tax (benefit) provision of $(1,259) and of $368 on income from operations before income taxes of $2,560 and $3,224 for the three months ended September 30, 2016 and 2015, respectively. The effective tax rate for the three months ended September 30, 2016 differed from the federal statutory rate primarily due to federal research and development credits, domestic manufacturing deduction, excess tax benefits related to stock compensation, and state taxes. The effective tax rate for the three months ended September 30, 2015 differed from the federal statutory rate primarily due to domestic manufacturing deduction, excess tax benefits related to stock compensation, and state taxes. No material changes in the Company’s unrecognized tax positions occurred during the three months ended September 30, 2016. The Company is currently under audit by the Internal Revenue Service for fiscal year 2013. There have been no significant changes to the status of this examination during the three months ended September 30, 2016. It is reasonably possible that within the next 12 months the Company’s unrecognized tax benefits, exclusive of interest, may decrease by up to $757 at the conclusion of the audit. The Company expects that the decrease, if recognized, would not affect the effective tax rate.

Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Sep. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies LEGAL CLAIMS The Company is subject to litigation, claims, investigations and audits arising from time to time in the ordinary course of our business. Although legal proceedings are inherently unpredictable, the Company believes that it has valid defenses with respect to any matters currently pending against the Company and intends to defend itself vigorously. The outcome of these matters, individually and in the aggregate, is not expected to have a material impact on the Company’s cash flows, results of operations, or financial position. INDEMNIFICATION OBLIGATIONS The Company’s standard product sales and license agreements entered into in the ordinary course of business typically contain an indemnification provision pursuant to which the Company indemnifies, holds harmless, and agrees to reimburse the indemnified party for losses suffered or incurred by the indemnified party in connection with any patent, copyright or other intellectual property infringement claim by any third party with respect to the Company’s products. Such provisions generally survive termination or expiration of the agreements. The potential amount of future payments the Company could be required to make under these indemnification provisions is, in some instances, unlimited. PURCHASE COMMITMENTS As of September 30, 2016, the Company has entered into non-cancelable purchase commitments for certain inventory components and services used in its normal operations. The purchase commitments covered by these agreements are for less than one year and aggregate to $39,344. OTHER As part of the Company's strategy for growth, the Company continues to explore acquisitions or strategic alliances. The associated acquisition costs incurred in the form of professional fees and services may be material to the future periods in which they occur, regardless of whether the acquisition is ultimately completed. The Company may elect from time to time to purchase and subsequently retire shares of common stock in order to settle an individual employees’ tax liability associated with vesting of a restricted stock award or exercise of stock options. These transactions would be treated as a use of cash in financing activities in the Company's statement of cash flows.

Debt	3 Months Ended
Debt	Sep. 30, 2016
Debt Disclosure [Abstract]
Debt	Debt TERM LOAN AND REVOLVING CREDIT FACILITIES On May 2, 2016, the Company and certain of its subsidiaries, as guarantors, entered into a Credit Agreement (the “Credit Agreement”) with a syndicate of commercial banks and Bank of America, N.A acting as the administrative agent. The Credit Agreement provides for a $200,000 term loan facility ("Term Loan") and a $100,000 revolving credit facility ("Revolver"). As of September 30, 2016, the Company’s outstanding balance on the Term Loan was $197,500, net of $7,254 of unamortized debt issuance costs. The stated interest rate of the Term Loan was 2.8% as of September 30, 2016. The Company was in compliance with all covenants and conditions under the Credit Agreement. There were no borrowings against the Revolver; however, there were outstanding letters of credit of $1,938 under this Credit Agreement as of September 30, 2016.

Stock-Based Compensation

3 Months Ended

Sep. 30, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation

STOCK OPTION PLANS

The number of shares authorized for issuance under the Company’s 2005 Stock Incentive Plan, as amended and restated (the “2005 Plan”), is 15,252 shares at September 30, 2016. The 2005 Plan provides for the grant of non-qualified and incentive stock options, restricted stock, stock appreciation rights and deferred stock awards to employees and non-employees. All stock options are granted with an exercise price of not less than 100% of the fair value of the Company’s common stock at the date of grant and the options generally have a term of seven years. There were 1,580 shares available for future grant under the 2005 Plan at September 30, 2016.

As part of the Company's ongoing annual equity grant program for employees, the Company grants performance-based restricted stock awards to certain executives pursuant to the 2005 Plan. Performance awards vest based on the requisite service period subject to the achievement of specific financial performance targets. Based on the performance targets, some of these awards require graded vesting which results in more rapid expense recognition compared to traditional time-based vesting over the same vesting period. The Company monitors the probability of achieving the performance targets on a quarterly basis and may adjust periodic stock compensation expense accordingly.

EMPLOYEE STOCK PURCHASE PLAN

The number of shares authorized for issuance under the Company’s 1997 Employee Stock Purchase Plan, as amended and restated (“ESPP”), is 1,800 shares. Under the ESPP, rights are granted to purchase shares of common stock at 85% of the lesser of the market value of such shares at either the beginning or the end of each six-month offering period. The ESPP permits employees to purchase common stock through payroll deductions, which may not exceed 10% of an employee’s compensation as defined in the ESPP. There were no shares issued under the ESPP during the three months ended September 30, 2016 and 2015, respectively. Shares available for future purchase under the ESPP totaled 398 at September 30, 2016.

STOCK OPTION AND AWARD ACTIVITY

The following table summarizes activity of the Company’s stock option plans since June 30, 2016:



	Options Outstanding
	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)
Outstanding at June 30, 2016	258		$	13.34	1.06
Granted	—		—
Exercised	(6	)	13.07
Cancelled	—		—
Outstanding at September 30, 2016	252		$	13.35	0.81

The following table summarizes the status of the Company’s non-vested restricted stock awards since June 30, 2016:



	Non-vested Restricted Stock Awards
	Number of Shares		Weighted Average Grant Date Fair Value
Outstanding at June 30, 2016	1,666		$	13.09
Granted	633		23.69
Vested	(633	)	10.89
Forfeited	(18	)	16.66
Outstanding at September 30, 2016	1,648		$	17.97

STOCK-BASED COMPENSATION EXPENSE

The Company recognized the full expense of its share-based payment plans in the consolidated statements of operations for the three months ended September 30, 2016 and 2015 in accordance with FASB ASC 718, Compensation - Stock Compensation. The Company had $177 of capitalized stock-based compensation expense on the consolidated balance sheets as of September 30, 2016. In the prior year, the Company did not capitalize any such costs on the consolidated balance sheets, as such costs that qualified for capitalization were not material. Under the fair value recognition provisions of FASB ASC 718, stock-based compensation cost is measured at the grant date based on the value of the award and is recognized as expense over the service period, net of estimated forfeitures. The following table presents share-based compensation expenses from continuing operations included in the Company’s consolidated statements of operations:



	Three Months Ended September 30,
	2016			2015
Cost of revenues	$	75		$	149
Selling, general and administrative	3,039			2,128
Research and development	518			425
Share-based compensation expense before tax	3,632			2,702
Income taxes	(1,389		)	(1,041		)
Share-based compensation expense, net of income taxes	$	2,243		$	1,661

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References + Details

Operating Segment, Geographic Information and Significant Customers

3 Months Ended

Sep. 30, 2016

Segment Reporting [Abstract]

Operating Segment, Geographic Information and Significant Customers

Operating segments are defined as components of an enterprise evaluated regularly by the Company's chief operating decision maker (“CODM”) in deciding how to allocate resources and assess performance. The Company is comprised of one operating and reportable segment. The Company utilized the management approach for determining its operating segment in accordance with FASB ASC 280.

The geographic distribution of the Company’s revenues is summarized as follows:



	US		Europe		Asia Pacific		Eliminations			Total
THREE MONTHS ENDED SEPTEMBER 30, 2016
Net revenues to unaffiliated customers	$	83,048	$	854	$	3,747	$	—		$	87,649
Inter-geographic revenues	3,286		15		—		(3,301		)	—
Net revenues	$	86,334	$	869	$	3,747	$	(3,301	)	$	87,649
THREE MONTHS ENDED SEPTEMBER 30, 2015
Net revenues to unaffiliated customers	$	57,362	$	458	$	589	$	—		$	58,409
Inter-geographic revenues	1,254		31		—		(1,285		)	—
Net revenues	$	58,616	$	489	$	589	$	(1,285	)	$	58,409

Foreign revenue is based on the country in which the Company’s legal subsidiary is domiciled.

The geographic distribution of the Company’s long-lived assets is summarized as follows:



	US		Europe		Asia Pacific		Eliminations		Total
September 30, 2016	$	31,226	$	129	$	21	$	—	$	31,376
June 30, 2016	$	28,187	$	127	$	23	$	—	$	28,337

Identifiable long-lived assets exclude goodwill and intangible assets.

Customers comprising 10% or more of the Company’s revenues for the periods shown below are as follows:



	Three Months Ended September 30,
	2016		2015
Lockheed Martin Corporation	25	%	16	%
Raytheon Company	15	%	38	%
	40	%	54	%

While the Company typically has customers from which it derives 10% or more of its revenue, the sales to each of these customers are spread across multiple programs and platforms. Programs comprising 10% or more of the Company’s revenues for the periods shown below are as follows:



	Three Months Ended September 30,
	2016		2015
Aegis	14	%	*
Patriot	*		17	%
	14	%	17	%


*	Indicates that the amount is less than 10% of the Company’s revenues for the respective period.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8981-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8971-108599

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8595-108599

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8380-108599

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8844-108599

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8984-108599

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9031-108599

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9054-108599

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8538-108599

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 29
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8864-108599

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8924-108599

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8906-108599

+ Details

Subsequent Events	3 Months Ended
Subsequent Events	Sep. 30, 2016
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On November 3, 2016, the Company signed a definitive agreement to acquire CES Creative Electronic Systems, S.A., a leading provider of embedded solutions for military and aerospace mission-critical computing applications. The purchase price is expected to be approximately $38,000, subject to net working capital and net debt adjustments, plus foreign currency, and transaction related expenses, all of which are expected to be funded with cash on hand. The Company expects to close the transaction during the second fiscal quarter ending December 31, 2016. The Company has evaluated subsequent events from the date of the consolidated balance sheet through the date the consolidated financial statements were issued.

Summary of Significant Accounting Policies (Policies)

3 Months Ended

Sep. 30, 2016

Accounting Policies [Abstract]

Basis of Presentation

BASIS OF PRESENTATION

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation

Business Combinations

BUSINESS COMBINATIONS

Use of Estimates

USE OF ESTIMATES

Reclassification

RECLASSIFICATION

Revenue Recognition

REVENUE RECOGNITION

Weighted-Average Shares

WEIGHTED-AVERAGE SHARES

Weighted-average shares were calculated as follows:



	Three Months Ended September 30,
	2016	2015
Basic weighted-average shares outstanding	38,865	32,778
Effect of dilutive equity instruments	1,000	838
Diluted weighted-average shares outstanding	39,865	33,616

September 30, 2016 basic shares outstanding include the impact of 5,175 shares from the underwritten common stock public offering on April 4, 2016.

Summary of Significant Accounting Policies (Tables)

3 Months Ended

Sep. 30, 2016

Accounting Policies [Abstract]

Basic and Diluted Weighted Average Shares Outstanding

WEIGHTED-AVERAGE SHARES

Weighted-average shares were calculated as follows:



	Three Months Ended September 30,
	2016	2015
Basic weighted-average shares outstanding	38,865	32,778
Effect of dilutive equity instruments	1,000	838
Diluted weighted-average shares outstanding	39,865	33,616

Acquisitions (Tables)

3 Months Ended

Sep. 30, 2016

Business Combinations [Abstract]

Schedule of the Net Purchase Price and Fair Values of Assets and Liabilities Acquired

The following table presents the net purchase price and the preliminary fair values of the assets and liabilities of the Carve-Out Business:



	Amounts
Consideration transferred
Cash paid at closing	$	300,000
Value allocated to replacement awards	407
Net purchase price	$	300,407

Estimated fair value of tangible assets acquired and liabilities assumed
Accounts receivable and cost in excess of billings	$	17,023
Inventory	25,477
Fixed assets	13,996
Other current and non-current assets	524
Current liabilities	(4,677		)
Non-current deferred tax liabilities	(25,477		)
Estimated fair value of net tangible assets acquired	26,866
Estimated fair value of identifiable intangible assets	102,800
Estimated goodwill	170,741
Estimated fair value of assets acquired	$	300,407
Net purchase price	$	300,407

Business Acquisition, Pro Forma Information

The following tables summarize the supplemental statements of operations information on an unaudited pro forma basis as if the Carve-Out Business acquisition had occurred on July 1, 2015:



	Three Months ended September 30,
	2015
Pro forma net revenues	$	83,103
Pro forma net income	$	2,039
Basic pro forma net earnings per share	$	0.05
Diluted pro forma net earnings per share	$	0.05

Fair Value of Financial Instruments (Tables)

3 Months Ended

Sep. 30, 2016

Fair Value Disclosures [Abstract]

Summary of Financial Assets Measured at Fair Value

The following table summarizes the Company’s financial assets measured at fair value on a recurring basis at September 30, 2016:



	Fair Value Measurements
	September 30, 2016		Level 1		Level 2		Level 3
Assets:
Certificates of deposit	$	30,104	$	—	$	30,104	$	—
Total	$	30,104	$	—	$	30,104	$	—

Inventory (Tables)

3 Months Ended

Sep. 30, 2016

Inventory Disclosure [Abstract]

Inventory

Inventory was comprised of the following:



	September 30, 2016		June 30, 2016
Raw materials	$	33,603	$	31,205
Work in process	15,401		15,967
Finished goods	9,439		11,112
Total	$	58,443	$	58,284

Goodwill (Tables)

3 Months Ended

Sep. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill

The following table sets forth the changes in the carrying amount of goodwill by reporting unit for the three months ended September 30, 2016:



	MCE		MDS		Carve-out Business		Total
Balance at June 30, 2016	$	134,378	$	39,406	$	170,243	$	344,027
Goodwill adjustment for the Carve-Out Business acquisition	—		—		498		498
Balance at September 30, 2016	$	134,378	$	39,406	$	170,741	$	344,525

Restructuring Plan (Tables)

3 Months Ended

Sep. 30, 2016

Restructuring and Related Activities [Abstract]

Expenses by Reportable Segment for Restructuring Plans

The following table presents the detail of activity for the Company’s restructuring plans:



	Severance & Related			Facilities & Other			Total
Restructuring liability at June 30, 2016	$	190		$	736		$	926
Restructuring and other charges	214			83			297
Cash paid	(63		)	(272		)	(335		)
Restructuring liability at September 30, 2016	$	341		$	547		$	888

Stock-Based Compensation (Tables)

3 Months Ended

Sep. 30, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Stock Option Plans

The following table summarizes activity of the Company’s stock option plans since June 30, 2016:



	Options Outstanding
	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)
Outstanding at June 30, 2016	258		$	13.34	1.06
Granted	—		—
Exercised	(6	)	13.07
Cancelled	—		—
Outstanding at September 30, 2016	252		$	13.35	0.81

Summary of Nonvested Restricted Stock

The following table summarizes the status of the Company’s non-vested restricted stock awards since June 30, 2016:



	Non-vested Restricted Stock Awards
	Number of Shares		Weighted Average Grant Date Fair Value
Outstanding at June 30, 2016	1,666		$	13.09
Granted	633		23.69
Vested	(633	)	10.89
Forfeited	(18	)	16.66
Outstanding at September 30, 2016	1,648		$	17.97

Stock Based Compensation Expenses

The following table presents share-based compensation expenses from continuing operations included in the Company’s consolidated statements of operations:



	Three Months Ended September 30,
	2016			2015
Cost of revenues	$	75		$	149
Selling, general and administrative	3,039			2,128
Research and development	518			425
Share-based compensation expense before tax	3,632			2,702
Income taxes	(1,389		)	(1,041		)
Share-based compensation expense, net of income taxes	$	2,243		$	1,661

Operating Segment, Geographic Information and Significant Customers (Tables)

3 Months Ended

Sep. 30, 2016

Segment Reporting [Abstract]

Geographic Distribution of Revenues and Long Lived Assets from Continuing Operations

The geographic distribution of the Company’s revenues is summarized as follows:



	US		Europe		Asia Pacific		Eliminations			Total
THREE MONTHS ENDED SEPTEMBER 30, 2016
Net revenues to unaffiliated customers	$	83,048	$	854	$	3,747	$	—		$	87,649
Inter-geographic revenues	3,286		15		—		(3,301		)	—
Net revenues	$	86,334	$	869	$	3,747	$	(3,301	)	$	87,649
THREE MONTHS ENDED SEPTEMBER 30, 2015
Net revenues to unaffiliated customers	$	57,362	$	458	$	589	$	—		$	58,409
Inter-geographic revenues	1,254		31		—		(1,285		)	—
Net revenues	$	58,616	$	489	$	589	$	(1,285	)	$	58,409

Foreign revenue is based on the country in which the Company’s legal subsidiary is domiciled.

The geographic distribution of the Company’s long-lived assets is summarized as follows:



	US		Europe		Asia Pacific		Eliminations		Total
September 30, 2016	$	31,226	$	129	$	21	$	—	$	31,376
June 30, 2016	$	28,187	$	127	$	23	$	—	$	28,337

Customers Comprising Ten Percent or More Revenues

Customers comprising 10% or more of the Company’s revenues for the periods shown below are as follows:



	Three Months Ended September 30,
	2016		2015
Lockheed Martin Corporation	25	%	16	%
Raytheon Company	15	%	38	%
	40	%	54	%

Schedules of Concentration of Risk, by Risk Factor

Programs comprising 10% or more of the Company’s revenues for the periods shown below are as follows:



	Three Months Ended September 30,
	2016		2015
Aegis	14	%	*
Patriot	*		17	%
	14	%	17	%


*	Indicates that the amount is less than 10% of the Company’s revenues for the respective period.

Description of Business (Details)	3 Months Ended
Description of Business (Details)	Sep. 30, 2016 program contractor
Accounting Policies [Abstract]
Number of programs using products and services \| program	300
Number of contractors using products and services \| contractor	25

Summary of Significant Accounting Policies (Reclassification) (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Research and development	$ 12,838	$ 8,866
Cost of revenues	$ 48,205	30,107
Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Research and development		773
Cost of revenues		$ (773)

Summary of Significant Accounting Policies - Additional Information (Detail) - shares		3 Months Ended
	Apr. 13, 2016	Sep. 30, 2016	Sep. 30, 2015
Significant Accounting Policies [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		22,000	356,000
Multiple Delivery Revenue [Member]
Significant Accounting Policies [Line Items]
Percentage Of Revenue Recognized		35.00%	48.00%
Over-Allotment Option [Member]
Significant Accounting Policies [Line Items]
Sale of Stock, Number of Shares Issued in Transaction	5,175,000

Basic and Diluted Weighted Average Shares Outstanding (Detail) - shares shares in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share [Abstract]
Basic weighted-average shares outstanding	38,865	32,778
Effect of dilutive equity instruments	1,000	838
Diluted weighted-average shares outstanding	39,865	33,616
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	22	356

Acquisitions - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended
	May 02, 2016	Apr. 13, 2016	Dec. 16, 2015	Sep. 30, 2016	Sep. 30, 2015	Jun. 30, 2016
Business Acquisition [Line Items]
Estimated fair value of goodwill				$ 344,525		$ 344,027
Carve-out Business
Business Acquisition [Line Items]
Cash paid at closing	$ 300,000
Estimated fair value of goodwill	170,741
Business Acquisition, Goodwill, Expected Tax Deductible Amount				29,266
Revenue of acquiree since acquisition date				24,311
Net loss of acquiree since acquisition date				$ (2,419)
Business Acquisition, Pro Forma Revenue					$ 83,103
Business Acquisition, Pro Forma Net Income (Loss)					$ 2,039
Business Acquisition, Pro Forma Earnings Per Share, Basic					$ 0.05
Business Acquisition, Pro Forma Earnings Per Share, Diluted					$ 0.05
Lewis Innovative Technologies, Inc. (LIT) [Member]
Business Acquisition [Line Items]
Net purchase price			$ 9,756
Escrow deposit			$ 1,000
Developed Technology Rights [Member] \| Carve-out Business
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired	29,700
Customer Relationships [Member] \| Carve-out Business
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired	70,900
Backlog [Member] \| Carve-out Business
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired	$ 2,200
Over-Allotment Option [Member]
Business Acquisition [Line Items]
Sale of Stock, Consideration Received on Transaction		$ 92,788

Acquisitions - Net Purchase Price and Fair Values of Assets and Liabilities Acquired (Details) - USD ($) $ in Thousands	May 02, 2016	Dec. 16, 2015	Sep. 30, 2016	Jun. 30, 2016
Estimated fair value of tangible assets acquired and liabilities assumed
Estimated fair value of goodwill			$ 344,525	$ 344,027
Carve-out Business
Consideration transferred
Cash paid at closing	$ 300,000
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	407
Estimated fair value of tangible assets acquired and liabilities assumed
Accounts receivable and cost in excess of billings	17,023
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory	25,477
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	13,996
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Other Assets, Current And Noncurrent	524
Current liabilities	(4,677)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent	(25,477)
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Tangible Assets	26,866
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	102,800
Estimated fair value of goodwill	170,741
Estimated fair value of assets acquired	300,407
Business Combination, Consideration Transferred	$ 300,407
Lewis Innovative Technologies, Inc. (LIT) [Member]
Consideration transferred
Net purchase price		$ 9,756

Fair Value of Financial Instruments - Summary of Financial Assets Measured at Fair Value on Recurring Basis (Detail) - Fair Value, Measurements, Recurring [Member] $ in Thousands	Sep. 30, 2016 USD ($)
Level 1
Assets:
Fair value measurement disclosure	$ 0
Level 2
Assets:
Fair value measurement disclosure	30,104
Level 3
Assets:
Fair value measurement disclosure	0
Certificates of Deposit [Member] \| Level 1
Assets:
Fair value measurement disclosure	0
Certificates of Deposit [Member] \| Level 2
Assets:
Fair value measurement disclosure	30,104
Certificates of Deposit [Member] \| Level 3
Assets:
Fair value measurement disclosure	0
Fair Value
Assets:
Fair value measurement disclosure	30,104
Fair Value \| Certificates of Deposit [Member]
Assets:
Fair value measurement disclosure	$ 30,104

Inventory (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Jun. 30, 2016
Inventory Disclosure [Abstract]
Raw materials	$ 33,603	$ 31,205
Work in process	15,401	15,967
Finished goods	9,439	11,112
Total	$ 58,443	$ 58,284

Inventory - Additional Information (Detail)	3 Months Ended
Inventory - Additional Information (Detail)	Sep. 30, 2016 USD ($)
Schedule of Inventory [Line Items]
Production Cycle Term	Longer than one year
Product
Schedule of Inventory [Line Items]
Inventory relating to contracts having production cycles longer than one year	$ 0

Changes in Carrying Amount of Goodwill (Detail) $ in Thousands	3 Months Ended
	Sep. 30, 2016 USD ($)
Goodwill [Roll Forward]
Beginning Balance	$ 344,027
Goodwill, Other Changes	498
Ending Balance	344,525
MCE
Goodwill [Roll Forward]
Beginning Balance	134,378
Ending Balance	134,378
MDS
Goodwill [Roll Forward]
Beginning Balance	39,406
Ending Balance	39,406
Carve-out Business
Goodwill [Roll Forward]
Beginning Balance	170,243
Goodwill, Other Changes	498
Ending Balance	$ 170,741

Restructuring Plan - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Other Income and Expenses [Abstract]
Restructuring expenses	$ 297	$ 338

Expenses by Reportable Segment for Restructuring Plans (Detail) $ in Thousands	3 Months Ended
	Sep. 30, 2016 USD ($)
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	$ 926
Restructuring, Settlement and Impairment Provisions	297
Cash paid	(335)
Restructuring liability at end of period	888
Severance & Related [Member]
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	190
Restructuring, Settlement and Impairment Provisions	214
Cash paid	(63)
Restructuring liability at end of period	341
Facility & Other [Member]
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	736
Restructuring, Settlement and Impairment Provisions	83
Cash paid	(272)
Restructuring liability at end of period	$ 547

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Income tax (benefit) expense	$ (1,259)	$ 368
(Loss) income from operations before income taxes	2,560	$ 3,224
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	$ 757

Commitments And Contingencies - Additional Information (Detail) $ in Thousands	Sep. 30, 2016 USD ($)
Non-cancelable purchase commitments
Long-term Purchase Commitment [Line Items]
Purchase commitments for less than one year	$ 39,344

Debt - Additional Information (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	May 02, 2016
Debt Instrument [Line Items]
Long-term Debt	$ 197,500
Amount of outstanding letter of credit	1,938
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 100,000
Term Loan [Member]
Debt Instrument [Line Items]
Debt Issuance Costs, Gross	$ 7,254
Debt Instrument, Interest Rate, Stated Percentage	2.80%
Secured Debt [Member] \| Term Loan A [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 200,000

Stock Based Compensation - Additional Information (Detail) shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2016 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount \| $	$ 177
Employee Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance under stock incentive plan	1,800
Shares available for future grant	398
Purchase price as a percentage of the lesser of the market value of such shares at either the beginning or the end of each nine-month offering period	85.00%
Percentage of employee compensation that may be uses to purchase common stock through payroll deductions, maximum	10.00%
2005 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance under stock incentive plan	15,252
Exercise price of stock option, percentage	100.00%
Shares available for future grant	1,580
2005 Stock Incentive Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of stock option	7 years

Summary of Stock Option Plans (Detail) - Stock Options - $ / shares shares in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2016	Jun. 30, 2016
Number of Shares
Outstanding at beginning of period	258
Granted	0
Exercised	(6)
Cancelled	0
Outstanding at end of period	252	258
Weighted Average Exercise Price
Outstanding at beginning of period	$ 13.34
Granted	0.00
Exercised	13.07
Cancelled	0.00
Outstanding at end of period	$ 13.35	$ 13.34
Weighted Average Remaining Contractual Term (Years)
Outstanding at end of period	9 months 22 days	1 year 22 days

Summary of Nonvested Restricted Stock (Detail) - Restricted Stock shares in Thousands	3 Months Ended
	Sep. 30, 2016 $ / shares shares
Number of Shares
Beginning Balance \| shares	1,666
Granted \| shares	633
Vested \| shares	(633)
Forfeited \| shares	(18)
Ending Balance \| shares	1,648
Weighted Average Grant Date Fair Value
Beginning Balance \| $ / shares	$ 13.09
Granted \| $ / shares	23.69
Vested \| $ / shares	10.89
Forfeited \| $ / shares	16.66
Ending Balance \| $ / shares	$ 17.97

Stock Based Compensation Expenses (Detail) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense before tax	$ 3,632	$ 2,702
Income taxes	(1,389)	(1,041)
Net compensation expense	2,243	1,661
Cost of revenues
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense before tax	75	149
Selling, general and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense before tax	3,039	2,128
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense before tax	$ 518	$ 425

Operating Segment, Geographic Information and Significant Customers - Geographic Distribution of Revenues and Long Lived Assets from Continuing Operations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Jun. 30, 2016
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	$ 87,649	$ 58,409
Identifiable long-lived assets	31,376		$ 28,337
US
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	83,048	57,362
Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	854	458
Asia Pacific
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	3,747	589
Reportable Geographical Components [Member] \| US
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	86,334	58,616
Identifiable long-lived assets	31,226		28,187
Reportable Geographical Components [Member] \| Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	869	489
Identifiable long-lived assets	129		127
Reportable Geographical Components [Member] \| Asia Pacific
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	3,747	589
Identifiable long-lived assets	21		23
Geography Eliminations [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(3,301)	(1,285)
Identifiable long-lived assets	0		$ 0
Geography Eliminations [Member] \| US
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(3,286)	(1,254)
Geography Eliminations [Member] \| Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(15)	(31)
Geography Eliminations [Member] \| Asia Pacific
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	$ 0	$ 0

Operating Segment, Geographic Information and Significant Customers - Customers Comprising Ten Percent or more Revenues (Detail) - Sales Revenue, Net [Member]	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Revenue, Major Customer [Line Items]
Concentration risk, percentage	14.00%	17.00%
Customer Concentration Risk [Member]
Revenue, Major Customer [Line Items]
Concentration risk, percentage	40.00%	54.00%
Customer Concentration Risk [Member] \| Raytheon Company [Member]
Revenue, Major Customer [Line Items]
Concentration risk, percentage	15.00%	38.00%
Customer Concentration Risk [Member] \| Lockheed Martin Corporation [Member]
Revenue, Major Customer [Line Items]
Concentration risk, percentage	25.00%	16.00%

Operating Segment, Geographic Information and Significant Customers - Programs Comprising Ten Percent or more of Company's Revenue (Detail) - Sales Revenue, Net [Member]	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015 Rate
Segment Reporting Information [Line Items]
Concentration risk, percentage	14.00%	17.00%
Aegis Program [Member] \| Program Concentration Risk [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	14.00%
Patriot Program [Member] \| Program Concentration Risk [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage		17.00%

Subsequent Events (Narrative) (Details) $ in Thousands	3 Months Ended
Subsequent Events (Narrative) (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Scenario, Forecast
Subsequent Event [Line Items]
Payments to acquire business	$ 38,000