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Revenue recognition by geographic area. 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One-Time Termination Benefits [Member] Entity Address, Address Line One Entity Address, Address Line One Computer equipment and software. Computer Equipment And Software [Member] Computer Equipment and Software [Member] Accrued Liabilities, Current [Abstract] SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION: Supplemental Cash Flow Information [Abstract] Investment, Policy [Policy Text Block] Investments INCOME TAX (BENEFIT) EXPENSE Income Tax Expense (Benefit), Total Income Tax Expense (Benefit) Income tax expense (benefit) Income Tax Disclosure [Text Block] Income Taxes Preferred Stock, Shares Issued, Total Preferred Stock, Shares Issued Preferred stock, shares issued Other Accrued Liabilities, Current Other Payments to Acquire Property, Plant, and Equipment, Total Payments to Acquire Property, Plant, and Equipment Capital expenditures Purchases of property and equipment Income Tax Disclosure [Abstract] Guaranteed investment certificates. 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Entity Emerging Growth Company Entity Emerging Growth Company Operating Expenses [Abstract] OPERATING EXPENSES: Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Proceeds from maturities and redemptions of investments Europe [Member] Europe [Member] Selling and Marketing Expense, Total Selling and Marketing Expense Sales and marketing Document Transition Report Document Transition Report Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Accrued Expenses and Other Current Liabilities Depreciation, Depletion and Amortization, Total Depreciation, Depletion and Amortization Depreciation and amortization Pre-tax asset impairment charge Impairment, Long-Lived Asset, Held-for-Use Impairment, Long-Lived Asset, Held-for-Use, Total Summary of Changes in Accumulated Other Comprehensive Loss by Component Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Collaborative Arrangement Disclosure [Text Block] Government Capital Contracts Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Ending balance Beginning balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Accounts receivable, net of allowance of $2,297 and $2,365 Accounts Receivable, after Allowance for Credit Loss, Current, Total Accounts Receivable, after Allowance for Credit Loss, Current Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Other comprehensive gain Other Comprehensive Income (Loss), Net of Tax Other Comprehensive Income (Loss), Net of Tax, Total Revision of Prior Period [Domain] NET INCOME (LOSS) NET INCOME (LOSS) Net Income (Loss) Attributable to Parent Net income (loss) Operating lease liability Operating Lease, Liability, Current Current lease liabilities Additional Paid-in Capital [Member] Additional Paid-in Capital [Member] Government Contract Receivable Government Contract Receivable Government capital contracts funding amount Inventory, Raw Materials, Net of Reserves Raw materials Reduced cost of products and services sold Increase Decrease In Cost Of Products And Services Sold Increase decrease in cost of products and services sold. 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Molecular Products [Member] Common Stock [Member] Common Stock [Member] Sales and Excise Tax Payable, Current Sales tax payable Net Cash Provided by (Used in) Operating Activities [Abstract] OPERATING ACTIVITIES: Equity Component [Domain] Equity Component Purchases of investments Payments to Acquire Debt Securities, Available-for-Sale Net revenues Revenue from Contract with Customer, Excluding Assessed Tax, Total Revenue from Contract with Customer, Excluding Assessed Tax Total revenue Income (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Revenue from contract with customer. 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Security Exchange Name Security Exchange Name Revenue from Contract with Customer [Abstract] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Finance lease liability Finance Lease, Liability, Noncurrent Non-current lease liabilities Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Net cash provided by (used in) operating activities Net Cash Provided by (Used in) Operating Activities Commitments and Contingencies Disclosure [Abstract] Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance Common Stock, Shares, Outstanding Common stock, shares outstanding Inventory, Work in Process, Gross Work in process Foreign Earnings Repatriated Foreign earnings repatriated Debt Securities, Available-for-sale, Total Debt Securities, Available-for-Sale Fair Value Net Cash Provided by (Used in) Investing Activities [Abstract] INVESTING ACTIVITIES: Commitments and contingencies (Note 12) Commitments and Contingencies Common Stock, Shares, Issued, Total Common Stock, Shares, Issued Common stock, shares issued Minimum [Member] Minimum [Member] Segments [Domain] Deferred Revenue [Domain] Deferred Revenue Stockholders' Equity Attributable to Parent [Abstract] STOCKHOLDERS' EQUITY Foreign Currency Transaction Gain (Loss), before Tax, Total Foreign Currency Transaction Gain (Loss), before Tax Net foreign exchange gains (losses) Molecular Solutions [Member] Molecular Solutions [Member] Molecular solutions. Schedule of Available-for-Sale Securities [Table] Schedule Of Available For Sale Securities [Table] Segments [Axis] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents Foreign Currency Transactions and Translations Policy [Policy Text Block] Foreign Currency Translation Revenues [Abstract] NET REVENUES: Other non product revenues. Other Non Product Revenues [Member] Other Non Product Revenues [Member] Subsequent Event [Member] Estimated expense upon reduction of workforce Restructuring and Related Cost, Expected Cost Restructuring and Related Cost, Expected Cost, Total Accrued property and equipment purchases under government contracts Accrued Property and Equipment Purchases under Government Contracts Accrued property and equipment purchases under government contracts. 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Risk Assessment Testing [Member] Risk Assessment Testing [Member] Business Combination, Contingent Consideration, Liability, Noncurrent Acquisition-related contingent consideration obligation Business acquisition contingent consideration, non-current Short-Term Investments Short-term investments Short-term Investments, Total Customer [Axis] Customer Accounting Policies [Abstract] Debt Securities, Available-for-Sale [Line Items] Schedule of Available-for-sale Securities [Line Items] Disaggregation of Revenue [Line Items] Disaggregation Of Revenue [Line Items] Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total Finance Lease, Right-of-Use Asset, after Accumulated Amortization Finance right-of-use assets, net Right-of-use assets Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated depreciation of property and equipment Property, Plant and Equipment [Table] Business Combination, Contingent Consideration, Liability, Current Acquisition-related contingent consideration obligation Subsequent Event [Table] General and Administrative Expense, Total General and Administrative Expense General and administrative Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Change in the estimated fair value of acquisition-related contingent consideration Change in fair value during the period Deferred Compensation Plan Assets Fair value of plan assets Organization, Consolidation and Presentation of Financial Statements [Abstract] Finance Lease, Principal Payments Financing cash flows from financing leases Cash payments for lease liabilities Research and Development [Member] Research and Development Expense [Member] Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Retained Earnings [Member] Accumulated Deficit [Member] Common stock options unvested restricted stock and unvested performance units. Common Stock Options Unvested Restricted Stock And Unvested Performance Units [Member] Common Stock Options Unvested Restricted Stock and Unvested Performance Stock Units [Member] Billed Contracts Receivable Billed Contract Receivables Billed receivables Increase decrease in other non-cash amortization. Increase Decrease In Other Non Cash Amortization Other non-cash amortization "Percentage of total capital costs incurred under government contract not reimbursed until completion of final validation testing. Percentage Withheld Under Government Contracts Subject to Validation Testing Percentage withheld under government contracts subject to validation testing Customer [Domain] Customer Money Market Funds [Member] Money Market Fund [Member] Segment Reporting [Abstract] Customer. Customer [Member] Customer [Member] Other revenues. 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Product And Services [Member] Products and Services [Member] Financial Instrument [Axis] Financial Instrument Long-Lived Tangible Asset [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark Liabilities and Equity [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Land [Member] Land [Member] Cash paid for income taxes Income Taxes Paid, Net Income Taxes Paid, Net, Total Antidilutive Securities, Name [Domain] Antidilutive Securities, Name Type of Restructuring [Domain] Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Reduction percentage on non-production workforce Percentage Of Reduction On Non Production Workforce Percentage of reduction on non production workforce. Unrealized foreign currency loss Foreign Currency Transaction Gain (Loss), Unrealized Assets, Current [Abstract] Current Assets: Business Segments Segment Reporting Disclosure [Text Block] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV Payables and Accruals [Abstract] Summary of One-Time Termination Benefits Summary Of One-Time Termination Benefits [Table Text Block] Summary of one-time termination benefits. Increase (Decrease) in Operating Capital [Abstract] Changes in assets and liabilities Payment for Contingent Consideration Liability, Operating Activities Payment of acquisition-related contingent consideration Cover [Abstract] Concentration Risk, Percentage Percentage of concentration risk Product and Service [Domain] Product and Service Inventory, Net [Abstract] Liabilities, Current [Abstract] Current Liabilities: Up-front Payment Arrangement [Member] Up Front Payment Arrangement [Member] Maximum [Member] Maximum [Member] Unrealized gain on marketable securities Unrealized gain on marketable securities Unrealized loss on marketable securities OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Furniture and Fixtures [Member] Furniture and Fixtures [Member] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Options, Exercised Exercised Payment of reduction in workforce Payment Of Reduction In Workforce Payment of reduction in workforce. Schedule of Inventory, Current [Table Text Block] Schedule of Inventories Accounts Receivable [Member] Accounts Receivable [Member] Stock Issued During Period, Value, Stock Options Exercised Common stock issued upon exercise of options Long-term Investments, Total Long-Term Investments Long-term investments Major Customers, Policy [Policy Text Block] Customer and Vendor Concentrations Common Stock, Shares Authorized Common stock, shares authorized Trading Symbol Trading Symbol Summary of Reconciliation of Changes in Stockholder's Equity Schedule of Stockholders Equity [Table Text Block] Debt Securities, Available-for-Sale [Table Text Block] Summary of Available-for-sale Securities Government Contract [Member] Government Contract Member Subsequent Event Type [Axis] COMPREHENSIVE INCOME (LOSS) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Accounts Payable, Current, Total Accounts Payable, Current Accounts payable Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Gross Unrealized Losses Gross Unrealized Losses Accumulated Other Comprehensive Income (Loss) [Line Items] Concentration Risk Type [Domain] Concentration Risk Type Long-Lived Tangible Asset [Domain] Common Stock, Par or Stated Value Per Share Common stock, par value Accumulated Other Comprehensive Loss Comprehensive Income, Policy [Policy Text Block] Property, Plant and Equipment, Net Property, Plant and Equipment Disclosure [Text Block] Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Number of anti-dilutive securities excluded from EPS computation Non-cash investing activities Noncash Investing and Financing Items [Abstract]