Document and Entity Information[Abstract] Document And Entity Information [Abstract] Document and Entity Information Statement [Table] Statement [Line Items] Document Type Amendment Flag Document Period End Date Document Fiscal Year Focus Document Fiscal Period Focus Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Filer Category Entity Common Stock, Shares Outstanding Consolidated Balance Sheets [Abstract] Assets Abstract Assets Cash and cash equivalents Cash and cash equivalents at end of period Cash and cash equivalents at beginning of period Cash and Cash Equivalents, at Carrying Value, Total Accounts receivable, net of allowance for doubtful accounts of $163 at September 30, 2010 and June 30, 2010 Accounts Receivable, Net, Current, Total Accounts receivable, net of allowance for doubtful accounts of $45 and $17 at March 31, 2012 and June 30, 2011, respectively Costs in Excess of Billings on Uncompleted Contracts or Programs Expected to be Collected within One Year Unbilled receivables and cost in excess of billings Inventory Net Inventory Inventory, Net, Total Deferred Tax Assets Net Current Deferred Tax Assets, Net, Current, Ending Balance Deferred Tax Assets, Net, Current, Beginning Balance Deferred income taxes Deferred Tax Assets, Net, Current, Total Prepaid income taxes Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current, Total Assets, Current Total current assets Restricted cash Property and equipment, net Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net, Total Goodwill Goodwill, Ending Balance Goodwill, Beginning Balance Goodwill, Total Acquired intangible assets, net Intangible Assets, Net (Excluding Goodwill), Total Other non-current assets Other Assets, Noncurrent, Total Assets Total assets Liabilities And Stockholders Equity Abstract Liabilities and Stockholders' Equity Liabilities and Shareholders' Equity Accounts payable Accounts Payable, Current, Total Accrued Liabilities, Current Accrued Liabilities, Current, Total Accrued expenses Deferred Compensation Liability, Current Deferred Compensation Liability, Current, Total Accrued compensation Deferred revenues and customer advances Deferred Revenue, Current, Total Liabilities, Current Total current liabilities Sale Leaseback Transaction, Deferred Gain, Net Sale Leaseback Transaction, Deferred Gain, Net, Total Deferred gain on sale-leaseback Deferred Tax Liabilities, Noncurrent Deferred income taxes Income taxes payable Other Liabilities Noncurrent Other non-current liabilities Other Liabilities, Noncurrent, Total Liabilities Total liabilities Commitments And Contingencies 2009 Commitments and contingencies (Note H) Shareholders' equity: Preferred stock, $.01 par value; 1,000,000 shares authorized; no shares issued or outstanding Preferred Stock, Value, Issued, Ending Balance Preferred Stock, Value, Issued, Beginning Balance Preferred Stock, Value, Issued, Total Common stock, $.01 par value; 85,000,000 shares authorized; 23,035,603 and 22,883,314 shares issued and outstanding at September 30, 2010 and June 30, 2010, respectively Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Total Common stock, $.01 par value; 85,000,000 shares authorized; 29,586,674 and 29,143,738 shares issued and outstanding at March 31, 2012 and June 30, 2011, respectively Additional paid-in capital Additional Paid in Capital, Ending Balance Additional Paid in Capital, Beginning Balance Additional Paid in Capital, Total Retained earnings Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Total Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Stockholders' Equity Attributable to Parent Stockholders' Equity Attributable to Parent, Ending Balance Stockholders' Equity Attributable to Parent, Beginning Balance Total shareholders' equity Liabilities and Stockholders' Equity Total liabilities and shareholders' equity Allowance for Doubtful Accounts Receivable, Current Allowance for Doubtful Accounts Receivable, Current, Ending Balance Allowance for Doubtful Accounts Receivable, Current, Beginning Balance Accounts receivable, allowance for doubtful accounts Preferred stock, par value Preferred stock, shares authorized Preferred stock, shares issued Preferred Stock, Shares Issued, Total Preferred stock, shares outstanding Preferred Stock, Shares Outstanding, Ending Balance Preferred Stock, Shares Outstanding, Beginning Balance Common stock, par value Common stock, shares authorized Common stock, shares issued Common Stock, Shares, Issued, Total Common stock, shares outstanding Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance Consolidated Statements Of Operations [Abstract] Net revenues Revenues, Total Cost of revenues Cost of Revenue, Total Gross margin Gross margin Operating expenses: Selling, general and administrative Selling, General and Administrative Expense, Total Research and development Research and Development Expense, Total Amortization of acquired intangible assets Amortization of Intangible Assets, Total Business Combination, Acquisition Related Costs Acquisition costs and other related expenses Total operating expenses Total operating expenses Income from operations Income from operations Interest income Interest expense Interest expense Interest Expense, Total Other Nonoperating Income (Expense) Other Nonoperating Income (Expense), Total Other income, net Income from continuing operations before income taxes Income from continuing operations before income taxes Income Tax Expense Benefit Income taxes Income Tax Expense (Benefit), Total Income from continuing operations Income from continuing operations Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest (Loss) income from discontinued operations, net of income taxes Loss from discontinued operations, net of income taxes Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total (Loss) income from discontinued operations, net of income taxes Net income Net income Basic net earnings per share: Basic net earnings (loss) per share: Income Loss From Continuing Operations Per Basic Share Income from continuing operations Income (Loss) from Continuing Operations, Per Outstanding Share, Total Income Loss From Discontinued Operations Net Of Tax Per Basic Share Loss from discontinued operations, net of income taxes Income (Loss) from Discontinued Operations, Net of Tax, Per Outstanding Share, Total Earnings Per Share Basic Net income Net income Diluted net earnings per share: Diluted net earnings (loss) per share: Income Loss From Continuing Operations Per Diluted Share Income from continuing operations (Loss) income from discontinued operations Loss from discontinued operations, net of income taxes Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share, Total Earnings Per Share Diluted Net income Net income Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted-average shares outstanding: Basic Weighted Average Number of Shares Outstanding, Basic, Total Diluted Weighted Average Number of Shares Outstanding, Diluted, Total Comprehensive income: Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total Foreign currency translation adjustments Total comprehensive income Total comprehensive income Consolidated Statements Of Cash Flows [Abstract] Cash flows from operating activities: Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization expense Depreciation and amortization expense Depreciation and amortization Share Based Compensation Stock-based compensation expense Stock-based compensation Changes in deferred income taxes Provision for deferred income taxes Excess tax benefits from stock-based compensation, net of APIC pool Excess tax benefit from stock-based compensation Other Noncash Income (Expense) Other non-cash items Other non-cash items Other Noncash Income (Expense), Total Changes in operating assets and liabilities: Changes in operating assets and liabilities, net of effects of businesses acquired: Accounts receivable, net Accounts receivable, unbilled receivables, and cost in excess of billings Increase Decrease In Inventories Inventory Inventory Increase (Decrease) in Inventories, Total Increase Decrease In Prepaid Income Taxes Prepaid income taxes Prepaid income taxes Increase (Decrease) in Prepaid, Deferred Expense and Other Assets Prepaid expenses and other current assets Increase (Decrease) in Prepaid, Deferred Expense and Other Assets, Total Prepaid expenses and other current assets Increase (Decrease) in Other Noncurrent Assets Other non-current assets Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities, Total Increase (Decrease) in Deferred Revenue and Customer Advances and Deposits Deferred revenues and customer advances Increase (Decrease) in Deferred Revenue and Customer Advances and Deposits, Total Increase Decrease In Accrued Income Taxes Payable Income taxes payable Increase (Decrease) in Other Noncurrent Liabilities Other non-current liabilities Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities Cash flows from investing activities: Payments to Acquire Businesses, Net of Cash Acquired Acquisition of businesses, net of cash acquired Acquisition of business, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired, Total Sales and maturities of marketable securities Proceeds from Sale and Maturity of Marketable Securities, Total Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment, Total Purchases of property and equipment Payments for acquired intangible assets Payments for acquired intangible assets Increase in restricted cash Increase in restricted cash Increase (Decrease) in Restricted Cash, Total Net Cash Provided by (Used in) Investing Activities Net cash used in investing activities Cash flows from financing activities: Proceeds from Issuance of Common Stock Proceeds from follow-on public stock offering, net Proceeds from employee stock plans Excess tax benefits from stock-based compensation Excess tax benefit from stock-based compensation Payments of Stock Issuance Costs Payments of deferred offering costs Payments of deferred offering costs RepaymentsOfLongTermCapitalLeaseObligations Payments of capital lease obligations Net Cash Provided by (Used in) Financing Activities Net cash provided by financing activities Effect of exchange rate changes on cash and cash equivalents Effect of exchange rate changes on cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Net (decrease) increase in cash and cash equivalents Cash paid during the period for: Interest Paid Interest Interest Paid, Total Income taxes, net Income taxes Income taxes Income Taxes Paid, Net, Total Supplemental disclosures-non-cash activities: Supplemental disclosures-non-cash activities: Issuance of restricted stock awards to employees Noncash or Part Noncash Acquisition, Intangible Assets Acquired Acquisition of intangible assets Payments of capital lease obligations Payments of capital lease obligations Capital lease Description Of Business [Abstract] Nature Of Operations Description Of Business Summary Of Significant Accounting Policies [Abstract] Significant Accounting Policies Text Block Summary Of Significant Accounting Policies Acquisitions [Abstract] Business Combination Disclosure [Text Block] Acquisitions Goodwill And Acquired Intangible Assets [Abstract] Goodwill And Intangible Assets Disclosure Text Block Goodwill And Acquired Intangible Assets Fair Value Of Financial Instruments [Abstract] Fair Value Disclosures [Text Block] Fair Value Of Financial Instruments Inventory [Abstract] Inventory Disclosure Text Block Inventory Debt [Abstract] Debt Disclosure Text Block Debt Commitments And Contingencies [Abstract] Commitments And Contingencies Disclosure Text Block Commitments And Contingencies Stock-Based Compensation [Abstract] Disclosure Of Compensation Related Costs Share Based Payments Text Block Share-based Compensation Stock-Based Compensation Operating Segment, Geographic Information And Significant Customers [Abstract] Segment Reporting Disclosure Text Block Operating Segment, Geographic Information And Significant Customers Income Taxes [Abstract] Income Tax Disclosure Text Block Income Taxes Subsequent Events [Abstract] Subsequent Events [Text Block] Subsequent Events