Accounting Policies [Abstract] Accounting Policies [Abstract] Accounts Payable Current Trade accounts payable Accounts Receivable Net Current Trade accounts receivable, less allowance for doubtful accounts of $488 and $428, respectively Accrued Income Taxes Current Income taxes payable Accrued Liabilities Current Accrued expenses Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Accumulated depreciation and amortization Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax Net unrealized gain on available-for-sale investments, net of tax Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax Foreign currency translation adjustments Accumulated Other Comprehensive Income Loss [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income Loss Net Of Tax Accumulated other comprehensive income Accumulated other comprehensive income Accumulated Other Comprehensive Income Loss [Table] Accumulated Other Comprehensive Income (Loss) [Table] Period from initial equity investment over which milestones must be met to trigger business acquisition. Achievement Of Certain Performance Milestones Period Period to achieve certain commercial milestones from the date of Agreement Additional Paid In Capital Common Stock Additional paid-in capital Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Adjustments to reconcile net earnings to net cash provided by operating activities: Allowance For Doubtful Accounts Receivable Current Trade accounts receivable, allowance for doubtful accounts Amendment Flag Amendment Flag Amortization Of Intangible Assets Amortization of intangible assets Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Number of potentially dilutive stock option shares excluded from the calculation of earnings per share Assets Assets, Total Assets [Abstract] ASSETS Assets Current Total current assets Assets Current [Abstract] Current assets: Available For Sale Securities Available-for-sale securities, fair value Available For Sale Securities Amortized Cost Available-for-sale securities, amortized cost Available For Sale Securities Current Short-term available-for-sale investments Available For Sale Securities Noncurrent Available-for-sale investments Basis Of Accounting Basis of Presentation Bionostics Holdings, Ltd [Member] Bionostics Holdings Ltd [Member] Bionostics Holdings, Ltd Biotechnology [Member] Biotechnology [Member] Biotechnology Buildings And Improvements Gross Buildings and improvements Business Acquisition Acquiree [Domain] Business Acquisition, Acquiree [Domain] Business Acquisition [Axis] Business Acquisition [Axis] Percentage of calendar 2020 revenue greater than $100 million due as contingent consideration. Business Acquisition Contingent Consideration Required Cash Payments Percentage Of Sales Cash payment percentage of excess of revenue Business Acquisition [Line Items] Business Acquisition [Line Items] Business Combination Acquisition Related Costs Business acquisition, transaction costs Business Combination Contingent Consideration Arrangements Description Business combination contingent consideration arrangements description Business Combination Contingent Consideration Arrangements Range Of Outcomes Value High Business combination contingent consideration Business Combination Disclosure [Text Block] Acquisition Business Combination Pro Forma Information Earnings Or Loss Of Acquiree Since Acquisition Date Actual Net income Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual Net Sales Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets Total assets acquired Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Current assets Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deferred Tax Liabilities Noncurrent Deferred income taxes Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Equipment Equipment Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Intangible Assets Other Than Goodwill Intangible Assets Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Intangibles Acquired intangible assets Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Liabilities Liabilities Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net Net assets acquired Business Combinations [Abstract] Business Combinations [Abstract] Cash And Cash Equivalents At Carrying Value Cash and cash equivalents at end of period Cash and cash equivalents at beginning of period Cash and cash equivalents Cash And Cash Equivalents Period Increase Decrease Net increase in cash and cash equivalents Chemo Centryx Inc. [Member] Chemo Centryx Inc [Member] Chemo Centryx, Inc. Clinical Controls [Member] Clinical Controls [Member] Clinical Controls Common Stock Dividends Per Share Cash Paid Cash dividends per common share: Common Stock Par Or Stated Value Per Share Common stock, par value Common Stock Shares Authorized Common stock, shares authorized Common Stock Shares Issued Common stock, shares issued Common Stock Shares Outstanding Common stock, shares outstanding Common Stock Value Common stock, par value $.01 per share; authorized 100,000,000; issued and outstanding 36,925,781 and 36,834,678, respectively Comprehensive Income Net Of Tax Comprehensive income Comprehensive Income Note [Text Block] Accumulated Other Comprehensive Income Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Period from acquisition date over which contingent payments are calculated. Contingent Payment Period Contingent payment period Cost Of Goods And Services Sold Cost of sales Current Fiscal Year End Date Current Fiscal Year End Date Customer Relationships [Member] Customer relationships CyVek, Inc [Member] Cyvek Inc [Member] CyVek, Inc Deferred Income Tax Expense Benefit Deferred income taxes Deferred Tax Assets Net Current Deferred income taxes Deferred Tax Liabilities Current Deferred income taxes Deferred Tax Liabilities Noncurrent Deferred income taxes Depreciation Depletion And Amortization Depreciation and amortization Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Document Information [Line Items] Document Information [Line Items] Document Period End Date Document Period End Date Document Type Document Type Earnings Per Share [Abstract] Earnings per share: Earnings Per Share Basic Basic Earnings Per Share Diluted Diluted Earnings Per Share Disclosure [Line Items] Earnings Per Share Disclosure [Line Items] Earnings Per Share Disclosure [Line Items] Earnings Per Share Disclosure [Table] Earnings Per Share Disclosure [Table] Earnings Per Share Disclosure [Table] Earnings Per Share [Text Block] Earnings Per Share Effect Of Exchange Rate On Cash And Cash Equivalents Effect of exchange rate changes on cash and cash equivalents Employee Related Liabilities Current Salaries, wages and related accruals Entities [Table] Entities [Table] Entity Central Index Key Entity Central Index Key Entity Common Stock Shares Outstanding Entity Common Stock, Shares Outstanding Entity [Domain] Entity [Domain] Entity Filer Category Entity Filer Category Entity Registrant Name Entity Registrant Name Equity [Abstract] Equity [Abstract] Equity Method Investment Ownership Percentage Percentage of ownership of equity interest in common stock Excess Tax Benefit From Share Based Compensation Financing Activities Excess tax benefit from stock option exercises The noncash expense during the period from the sale of acquired inventory written up to fair value in purchase accounting. Fair Value Write Up Of Acquired Inventory Costs recognized on sale of acquired inventory Finite Lived Customer Relationships Gross Customer relationships Finite Lived Intangible Assets Accumulated Amortization Accumulated amortization Finitelived Intangible Assets Acquired 1 Acquisition Finite Lived Intangible Assets Amortization Expense After Year Five Thereafter Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year 2014 Finite Lived Intangible Assets Amortization Expense Year Five 2018 Finite Lived Intangible Assets Amortization Expense Year Four 2017 Finite Lived Intangible Assets Amortization Expense Year Three 2016 Finite Lived Intangible Assets Amortization Expense Year Two 2015 Finite Lived Intangible Assets By Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite Lived Intangible Assets Gross Finite-Lived Intangible Assets, Gross, Total Finite Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Finite Lived Intangible Assets Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite Lived Intangible Assets Net Ending balance Beginning balance Intangible assets, net Intangible assets, net Finite Lived Intangible Assets Translation Adjustments Currency translation Finite Lived Intangible Asset Useful Life Acquired intangible assets, useful life (in years) Finite Lived Noncompete Agreements Gross Non-compete agreement Finite Lived Trade Names Gross Trade names Goodwill Goodwill Goodwill And Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill And Intangible Assets Disclosure [Text Block] Intangible Assets and Goodwill Gross Profit Gross margin Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Earnings before income taxes Earnings before income taxes Income Statement [Abstract] Income Statement [Abstract] Income Tax Expense Benefit Income taxes Increase Decrease In Accounts And Other Receivables Trade accounts and other receivables Increase Decrease In Accounts Payable And Accrued Liabilities Trade accounts payable and accrued expenses Increase Decrease In Accrued Income Taxes Payable Income taxes payable Increase Decrease In Employee Related Liabilities Salaries, wages and related accruals Increase Decrease In Inventories Inventories Increase Decrease In Operating Capital [Abstract] Change in operating assets and operating liabilities, net of acquisition: Increase Decrease In Prepaid Expense Prepaid expenses Incremental Common Shares Attributable To Share Based Payment Arrangements Dilutive effect of stock options Amount of decrease in assets, excluding financial assets, lacking physical substance with a definite life, resulting from amortization expense. Intangible Assets Amortization Expense Amortization expense Intangible Assets [Line Items] Intangible Assets [Line Items] Intangible Assets [Line Items] Inventory Current [Table] Inventory, Current [Table] Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Inventory Disclosure [Text Block] Inventories Inventory Finished Goods Net Of Reserves Finished goods Inventory [Line Items] Inventory [Line Items] Inventory Net Inventories Inventories Inventory Raw Materials Net Of Reserves Raw materials Investment Income Net Interest income Investments Debt And Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Investments In Debt And Marketable Equity Securities And Certain Trading Assets Disclosure [Text Block] Available-For-Sale Investments Investment Type [Axis] Investment Type [Axis] Investment Type Categorization [Member] Investments [Domain] Land Land Legal Entity [Axis] Legal Entity [Axis] Liabilities And Stockholders Equity Liabilities and Equity, Total Liabilities And Stockholders Equity [Abstract] LIABILITIES AND SHAREHOLDERS' EQUITY Liabilities Current Total current liabilities Liabilities Current [Abstract] Current liabilities: Machinery And Equipment Gross Machinery and equipment Material Reconciling Items [Member] Unallocated Amount to Segment Net Cash Provided By Used In Financing Activities Net cash used in financing activities Net Cash Provided By Used In Financing Activities [Abstract] CASH FLOWS FROM FINANCING ACTIVITIES: Net Cash Provided By Used In Investing Activities Net cash used in investing activities Net Cash Provided By Used In Investing Activities [Abstract] CASH FLOWS FROM INVESTING ACTIVITIES: Net Cash Provided By Used In Operating Activities Net cash provided by operating activities Net Cash Provided By Used In Operating Activities [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: Net Income Loss Net earnings Net earnings Noncompete Agreements [Member] Non-compete agreement Nonoperating Income Expense Total other income (expense) Nonoperating Income Expense [Abstract] Other income (expense): Number Of Reportable Segments Number of reportable segments Operating Expenses Total operating expenses Operating Expenses [Abstract] Operating expenses: Operating Income Loss Operating income Operating Segments [Member] Reportable Segment Other Assets Noncurrent Other assets Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax Unrealized gains (losses) on available-for-sale investments, net of tax of $42, $6,610, ($16,887) and ($2,659), respectively Other Comprehensive Income Loss Available For Sale Securities Tax Unrealized gains (losses) on available for sale investments, tax Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax Foreign currency translation adjustments Other Comprehensive Income Loss Net Of Tax Other comprehensive income (loss) Other Comprehensive Income Loss Net Of Tax Period Increase Decrease [Abstract] Other comprehensive income (loss): Other Finite Lived Intangible Assets Gross Developed technology Other Noncash Income Expense Other Other Nonoperating Income Expense Other non-operating expense, net Other Receivables Net Current Other receivables Payments For Proceeds From Other Investing Activities Increase in other long-term assets Payments Of Dividends Common Stock Cash dividends Payments To Acquire Available For Sale Securities Purchase of available-for-sale investments Payments To Acquire Businesses Gross Payments to acquire business Payments To Acquire Businesses Net Of Cash Acquired Cash paid, net of cash acquired Acquisitions, net of cash acquired Payments To Acquire Equity Method Investments Investment in common stock Payments To Acquire Property Plant And Equipment Additions to property and equipment Prepaid Expense Current Prepaid expenses Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital Distributions from unconsolidated entities Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities Proceeds from maturities of available-for-sale investments Proceeds From Sale Of Available For Sale Securities Debt Proceeds from sales of available-for-sale investments Proceeds From Stock Options Exercised Proceeds from stock option exercises Property Plant And Equipment [Abstract] Property, Plant and Equipment [Abstract] Property Plant And Equipment Disclosure [Text Block] Property and Equipment Property Plant And Equipment Gross Property, Plant and Equipment, Gross, Total Property Plant And Equipment [Line Items] Property, Plant and Equipment [Line Items] Property Plant And Equipment Net Property and equipment, net Property and equipment, net Property Plant And Equipment Net [Abstract] Cost: Property Plant And Equipment [Text Block] Property and Equipment The cash outflow to acquire common stock contributed to employee stock bonus plans. Purchase Of Common Stock For Stock Bonus Plans Purchase of common stock for stock bonus plans Research And Development Expense Excluding Acquired In Process Cost Research and development Retained Earnings Accumulated Deficit Retained earnings Sales Revenue Net External sales Net sales Scenario 1 [Member] Scenario One [Member] Scenario one Scenario 3 [Member] Scenario Three [Member] Scenario Three Scenario 2 [Member] Scenario Two [Member] Scenario Two Scenario Unspecified [Domain] Scenario, Unspecified [Domain] Schedule Of Accumulated Other Comprehensive Income Loss Table [Text Block] Accumulated Other Comprehensive Income (Loss) Schedule Of Available For Sale Securities [Line Items] Schedule of Available-for-sale Securities [Line Items] Schedule Of Available For Sale Securities [Table] Schedule of Available-for-sale Securities [Table] Schedule Of Business Acquisitions By Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Schedule Of Business Acquisitions By Acquisition [Text Block] Estimated Fair Values of Assets Acquired and Liabilities Assumed Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Earnings per Share Scheduleof Finite Lived Intangible Assets Future Amortization Expense Table [Text Block] Estimated Future Amortization Expense for Intangible Assets Schedule Of Finite Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Tabular roll forward schedule of finite lived intangible assets Schedule Of Finite Lived Intangibles Assets Roll Forward Table [Text Block] Changes to Carrying Amount of Net Intangible Assets Schedule Of Intangible Assets And Goodwill Table [Text Block] Intangible Assets Schedule of Intangible Assets [Table] Schedule Of Intangible Assets [Table] Schedule of Intangible Assets [Table] Schedule Of Inventory Current Table [Text Block] Inventories Schedule Of Property Plant And Equipment [Table] Property, Plant and Equipment [Table] Schedule Of Segment Reporting Information By Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Schedule Of Segment Reporting Information By Segment [Text Block] Financial Information Relating to Reportable Segments Segment [Domain] Segments [Domain] Segment Reporting [Abstract] Segment Reporting [Abstract] Segment Reporting Disclosure [Text Block] Segment Information Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Selling General And Administrative Expense Selling, general and administrative Statement Business Segments [Axis] Segments [Axis] Statement [Line Items] Statement [Line Items] Statement Of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Statement Of Financial Position [Abstract] Statement of Financial Position [Abstract] Statement Of Income And Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Statement Scenario [Axis] Scenario [Axis] Statement [Table] Statement [Table] Stockholders Equity Total shareholders' equity Stockholders Equity [Abstract] Shareholders' equity: Stock Option Plan Expense Stock-based compensation expense Subsequent Event [Line Items] Subsequent Event [Line Items] Subsequent Event [Member] Subsequent Event Subsequent Events [Abstract] Subsequent Events [Abstract] Subsequent Events [Text Block] Subsequent Event Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Trade Names [Member] Trade names Trade Secrets [Member] Developed technology Trading Symbol Trading Symbol Weighted Average Number Of Diluted Shares Outstanding Diluted Weighted average common shares outstanding-diluted Weighted Average Number Of Shares Outstanding Basic Basic Weighted average common shares outstanding-basic Weighted Average Number Of Shares Outstanding Diluted Disclosure Items [Abstract] Weighted average common shares outstanding: