Entity Central Index Key Cover [Abstract] Entity Registrant Name Entity Registrant Name Entity Central Index Key Trading Symbol Trading Symbol Entity Current Reporting Status Entity Current Reporting Status Entity Voluntary Filers Entity Voluntary Filers Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Well-known Seasoned Issuer Entity Well Known Seasoned Issuer Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Entity Public Float Entity Public Float Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus ICFR Auditor Attestation Flag Icfr Auditor Attestation Flag Entity Shell Company Entity Shell Company Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Interactive Data Current Entity Interactive Data Current Title of 12(b) Security Security12b Title Security Exchange Name Security Exchange Name Entity File Number Entity File Number Entity Incorporation, State or Country Code Entity Incorporation State Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address Address Line1 Entity Address, City or Town Entity Address City Or Town Entity Address, State or Province Entity Address State Or Province Entity Address, Postal Zip Code Entity Address Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Document Annual Report Document Annual Report Document Transition Report Document Transition Report Statement Of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets Current [Abstract] Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Accounts receivable (less allowance for doubtful accounts of $138 at December 31, 2020 and $20 at December 31, 2019) Accounts Receivable Net Current Unbilled receivables Unbilled Receivables Current Prepaid expenses and other current assets Prepaid Expense And Other Assets Current Total current assets Assets Current Property and equipment, net Property Plant And Equipment Net Intangible assets, net Intangible Assets Net Excluding Goodwill Goodwill Goodwill Long term tax receivable Income Taxes Receivable Noncurrent Total assets Assets LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities And Stockholders Equity [Abstract] Current liabilities: Liabilities Current [Abstract] Accounts payable Accounts Payable Current Accrued expenses Accrued Liabilities Current Deferred revenue Contract With Customer Liability Current Total current liabilities Liabilities Current Long-term deferred revenue Contract With Customer Liability Noncurrent Commitments and contingent liabilities (Note 7) Commitments And Contingencies Stockholders’ equity: Stockholders Equity [Abstract] Preferred stock, $1.00 par value; 1,000,000 shares authorized, none outstanding Preferred Stock Value Common stock, $.01 par value; shares authorized, 70,000,000 in 2020 and 2019; issued and outstanding 21,378,833 as of December 31, 2020 and 21,442,781 as of December 31, 2019 Common Stock Value Additional paid-in capital Additional Paid In Capital Common Stock Accumulated deficit Retained Earnings Accumulated Deficit Total stockholders’ equity Stockholders Equity Total liabilities and stockholders’ equity Liabilities And Stockholders Equity Allowance for doubtful accounts (in dollars) Allowance For Doubtful Accounts Receivable Current Preferred stock, par value (in dollars per share) Preferred Stock Par Or Stated Value Per Share Preferred stock, shares authorized Preferred Stock Shares Authorized Preferred stock, shares outstanding Preferred Stock Shares Outstanding Common stock, par value (in dollars per share) Common Stock Par Or Stated Value Per Share Common stock, shares authorized Common Stock Shares Authorized Common stock, shares issued Common Stock Shares Issued Common stock, shares outstanding Common Stock Shares Outstanding Statement Of Income And Comprehensive Income [Abstract] Statement [Table] Statement [Table] Product and Service Product Or Service [Axis] Product and Service Products And Services [Domain] Software licenses License And Service [Member] Software maintenance Maintenance [Member] Services Service [Member] Statement [Line Items] Statement [Line Items] Revenue: Revenues [Abstract] Total revenue Revenue From Contract With Customer Including Assessed Tax Costs and expenses: Costs And Expenses [Abstract] Cost of services Cost Of Goods And Services Sold Research and development Research And Development Expense Selling and marketing Selling And Marketing Expense General and administrative General And Administrative Expense Total costs and expenses Costs And Expenses Operating loss Operating Income Loss Interest and other income Interest And Other Income Loss before (benefit) provision for income taxes Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest (Benefit) provision for income taxes Income Tax Expense Benefit Net loss Net Income Loss Net loss per share – basic Earnings Per Share Basic Net loss per share – diluted Earnings Per Share Diluted Weighted-average shares - basic Weighted Average Number Of Shares Outstanding Basic Weighted-average shares - diluted Weighted Average Number Of Diluted Shares Outstanding Represents amount of deferred tax benefit (expense) on other comprehensive income. Statement Of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided By Used In Operating Activities [Abstract] Net loss Adjustments to reconcile net income to net cash provided by operating activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Depreciation and amortization Depreciation Depletion And Amortization Stock-based compensation Share Based Compensation Deferred tax assets Deferred Tax Benefit Expense On Other Comprehensive Income Bad debt provision Provision For Doubtful Accounts Increase (decrease) from changes in assets and liabilities: Increase Decrease In Operating Capital [Abstract] Accounts receivable Increase Decrease In Accounts Receivable Unbilled receivables Increase Decrease In Contract With Customer Asset Prepaid expenses and other current assets Increase Decrease In Prepaid Deferred Expense And Other Assets Long-term tax receivable Increase Decrease In Income Taxes Receivable Accounts payable Increase Decrease In Accounts Payable Accrued expenses Increase Decrease In Accrued Liabilities Deferred revenue Increase Decrease In Contract With Customer Liability Net cash used in operating activities Net Cash Provided By Used In Operating Activities Cash flows from investing activities: Net Cash Provided By Used In Investing Activities [Abstract] Purchases of property and equipment Payments To Acquire Property Plant And Equipment Cash paid for acquisition, net Payments To Acquire Businesses Net Of Cash Acquired Net cash used in investing activities Net Cash Provided By Used In Investing Activities Cash flows from financing activities: Net Cash Provided By Used In Financing Activities [Abstract] Proceeds from issuance of common stock Proceeds From Issuance Of Common Stock Payments made for taxes of employees who surrendered shares related to unrestricted stock Payments Related To Tax Withholding For Share Based Compensation Repurchase of common stock Payments For Repurchase Of Common Stock Net cash used in financing activities Net Cash Provided By Used In Financing Activities Decrease in cash and cash equivalents Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect Cash and cash equivalents, beginning of year Cash and cash equivalents, end of year Supplemental disclosure: Supplemental Cash Flow Information [Abstract] Cash paid for income taxes Income Taxes Paid Total number of shares issued during the period, as a result of performance share awards. Stock issued during period value performance share award. Represents number of shares surrendered by employees to pay taxes related to unrestricted stock. Represents value of shares surrendered by employees to pay taxes related to unrestricted stock. Statement Of Stockholders Equity [Abstract] Equity Components Statement Equity Components [Axis] Equity Component Equity Component [Domain] Common Stock Common Stock [Member] Additional Paid-In Capital Additional Paid In Capital [Member] Accumulated Deficit Retained Earnings [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase Decrease In Stockholders Equity Roll Forward Balance Balance (in shares) Exercise of common stock options Stock Issued During Period Value Stock Options Exercised Exercise of common stock options (in shares) Stock Issued During Period Shares Stock Options Exercised Performance share award Stock Issued During Period Value Performance Share Award Performance share award (in shares) Stock Issued During Period Shares Performance Share Award Issuance of unrestricted stock Stock Granted During Period Value Sharebased Compensation Issuance of unrestricted stock (in shares) Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Shares surrendered by employees to pay taxes related to unrestricted stock Shares Surrendered To Pay Taxes Related To Unrestricted Stock Value Shares surrendered by employees to pay taxes related to unrestricted stock (in shares) Shares Surrendered To Pay Taxes Related To Unrestricted Stock Shares Issuance of common stock under employee stock purchase plan Stock Issued During Period Value Employee Stock Purchase Plan Issuance of common stock under employee stock purchase plan (in shares) Stock Issued During Period Shares Employee Stock Purchase Plans Stock-based compensation expense Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Repurchase of common stock Stock Repurchased During Period Value Repurchase of common stock (in shares) Stock Repurchased During Period Shares Balance Balance (in shares) Documents Incorporated by Reference Documents Incorporated By Reference [Text Block] Organization Consolidation And Presentation Of Financial Statements [Abstract] Nature of Business Nature Of Operations Accounting Policies [Abstract] Summary of Significant Accounting Policies Basis Of Presentation And Significant Accounting Policies [Text Block] Property Plant And Equipment [Abstract] Property and Equipment Property Plant And Equipment Disclosure [Text Block] Business Combinations [Abstract] Acquisitions Business Combination Disclosure [Text Block] Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Equity and Stock Compensation Plans Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Commitments And Contingencies Disclosure [Abstract] Commitments and Contingent Liabilities Commitments And Contingencies Disclosure [Text Block] Compensation And Retirement Disclosure [Abstract] Employee Benefit Plan Pension And Other Postretirement Benefits Disclosure [Text Block] Earnings Per Share [Abstract] Net Income (Loss) Per Share Earnings Per Share [Text Block] Basis of Presentation Basis Of Accounting Policy Policy [Text Block] Use of Estimates Use Of Estimates Fair Value Measurements Fair Value Measurement Policy Policy [Text Block] Cash and Cash Equivalents Cash And Cash Equivalents Policy [Text Block] Disclosure of accounting policy for allowance for doubtful accounts. Allowance for Doubtful Accounts Allowance For Doubtful Accounts Policy [Text Block] Property and Equipment Property Plant And Equipment Policy [Text Block] Goodwill Goodwill And Intangible Assets Goodwill Policy Valuation of Long-Lived Assets Impairment Or Disposal Of Long Lived Assets Policy [Text Block] Revenue Recognition Revenue From Contract With Customer Policy [Text Block] Income Taxes Income Tax Policy [Text Block] Capitalization of Software Costs Research Development And Computer Software Policy [Text Block] Research and Development Costs Research And Development Expense Policy Concentration of Credit Risk Concentration Risk Credit Risk Stock-based Compensation Compensation Related Costs Policy [Text Block] Computation of Earnings per Share Earnings Per Share Policy [Text Block] Fair Value of Financial Instruments Fair Value Of Financial Instruments Policy Segments Segment Reporting Policy Policy [Text Block] Schedule of Assets Measured at Fair Value on a Recurring Basis Fair Value Assets Measured On Recurring Basis [Text Block] Schedule of Allowance for Doubtful Accounts Schedule Of Accounts Notes Loans And Financing Receivable [Text Block] Tabular disclosure of the estimated useful lives of assets. Schedule of Estimated Useful Lives Assets Schedule Of Estimated Useful Lives Of Assets Table [Text Block] Schedule of Changes in Contract Assets and Liabilities Contract With Customer Asset And Liability Table [Text Block] Schedules of Concentration of Credit Risk with Respect to Net Accounts Receivable and Total Revenue Schedules Of Concentration Of Risk By Risk Factor [Text Block] Schedule of Revenues Generated from Geographic Regions Schedule Of Revenue From External Customers Attributed To Foreign Countries By Geographic Area [Text Block] Schedule of Revenue by Product Group Schedule Of Entity Wide Information Revenue From External Customers By Products And Services [Text Block] Tabular disclosure of revenue by transfer of goods or services. Schedule of Revenue by Timing of Transfer of Goods or Services Schedule Of Revenue By Transfer Of Goods Or Services Table [Text Block] Schedule of Property and Equipment Property Plant And Equipment [Text Block] Summary of Fair Value of Assets Acquired and Liabilities Assumed At Date of Acquisition Schedule Of Recognized Identified Assets Acquired And Liabilities Assumed Table [Text Block] Summary of Fair Value of Intangible Assets and Estimated Useful Live Finite Lived And Indefinite Lived Intangible Assets Acquired As Part Of Business Combination Table [Text Block] Schedule of Finite-Lived Intangible Assets, Future Amortization Expense Scheduleof Finite Lived Intangible Assets Future Amortization Expense Table [Text Block] Schedule of Components of Provision for Income Taxes Schedule Of Components Of Income Tax Expense Benefit Table [Text Block] Schedule of Reconciliation of U.S. Federal Statutory Rate to Effective Tax Rate Schedule Of Effective Income Tax Rate Reconciliation Table [Text Block] Schedule of Principal Components of Deferred Tax Assets Schedule Of Deferred Tax Assets And Liabilities Table [Text Block] Schedule of Roll forward of Uncertain Tax Position Related to Research and Development Tax Credits Schedule Of Unrecognized Tax Benefits Roll Forward Table [Text Block] Schedule of Stock-based Employee Compensation Expenses Included in Consolidated Statements of Income and Comprehensive Income Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Text Block] Schedule of Specific Assumptions Used to Determine the Fair Value of Options Granted Using the Black Scholes Valuation Model Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table [Text Block] Summary of Stock Option Transactions for Fixed Stock Option Plan Schedule Of Share Based Compensation Stock Options Activity Table [Text Block] Summary of Stock Options Outstanding Schedule Of Share Based Compensation Shares Authorized Under Stock Option Plans By Exercise Price Range [Text Block] Summary of Potentially Outstanding Common Shares Anti-dilutive Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Text Block] Schedule of Net Income (Loss) Per Share Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Disclosure of significant of accounting policies. Disclosure of significant of accounting policies. Disclosure Of Significant Of Accounting Policies [Table] Disclosure Of Significant Of Accounting Policies [Table] Measurement Frequency Fair Value By Measurement Frequency [Axis] Measurement Frequency Fair Value Measurement Frequency [Domain] Fair Value, Measurements, Recurring [Member] Fair Value Measurements Recurring [Member] Fair Value Hierarchy and NAV Fair Value By Fair Value Hierarchy Level [Axis] Fair Value Hierarchy and NAV Fair Value Measurements Fair Value Hierarchy [Domain] Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value Inputs Level1 [Member] Financial Instrument Financial Instrument [Axis] Financial Instruments Transfers And Servicing Of Financial Instruments Types Of Financial Instruments [Domain] Money market funds (included in cash and cash equivalents) Money Market Funds [Member] Statistical Measurement Range [Axis] Statistical Measurement Range [Member] Minimum Minimum [Member] Maximum Maximum [Member] Disclosure Of Significant Of Accounting Policies [Line Items] Disclosure Of Significant Of Accounting Policies [Line Items] Cash equivalents, primarily include money market funds Cash Equivalents At Carrying Value Fair Value Disclosures [Abstract] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Significant Other Observable Inputs (Level 2) Fair Value Inputs Level2 [Member] Significant Unobservable Inputs (Level 3) Fair Value Inputs Level3 [Member] Schedule of Available-for-sale Securities Schedule Of Available For Sale Securities [Line Items] Money market funds (included in cash and cash equivalents) Cash And Cash Equivalents Fair Value Disclosure Total Assets Fair Value Disclosure Allowance for Doubtful Accounts Receivable Allowance For Doubtful Accounts Receivable Rollforward Allowance for doubtful accounts balance - beginning of year Allowance For Doubtful Accounts Receivable Additions to the allowance for doubtful accounts Allowance For Doubtful Accounts Receivable Recoveries Deductions against the allowance for doubtful accounts Allowance For Doubtful Accounts Receivable Write Offs Allowance for doubtful accounts balance - end of year Schedule Of Property Plant And Equipment [Table] Schedule Of Property Plant And Equipment [Table] Long-Lived Tangible Asset Property Plant And Equipment By Type [Axis] Long-Lived Tangible Asset Property Plant And Equipment Type [Domain] Building Building [Member] Building improvements Building Improvements [Member] Furniture and Fixtures Furniture And Fixtures [Member] Represents computer, office and manufacturing equipment. Computer, office & manufacturing equipment Computer Office And Manufacturing Equipment [Member] Purchased software Computer Software Intangible Asset [Member] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Property Plant And Equipment [Line Items] Estimated useful lives of assets Property Plant And Equipment Useful Life Percentage of likelihood for goodwill examination of quantitative test. Percentage of likelihood for goodwill examination of quantitative test Percentage Of Likelihood For Goodwill Examination Of Quantitative Test Goodwill impairment Goodwill Impairment Loss Minimum period of payment of transaction price in contract with customer. Maximum period of payment of transaction price in contract with customer. Practical expedient for financing components Revenue Practical Expedient Financing Component Minimum period of payment of transaction price in contract with customer Minimum Period Of Payment Of Transaction Price In Contract With Customer Maximum period of payment of transaction price in contract with customer Maximum Period Of Payment Of Transaction Price In Contract With Customer Represents the percentage of remaining performance obligations expected to be recognized as revenue. Represents the minimum period of remaining performance obligations. Percentage of remaining performance obligations expected to be recognized as revenue Percentage Of Remaining Performance Obligations Expected To Be Recognized As Revenue Minimum period of remaining performance obligations Minimum Period Of Remaining Performance Obligations Revenue recognition performance obligation transaction price Revenue Remaining Performance Obligation Represents the amount of revenue recognized in advance of billings under current unbilled receivables. Represents the amount of billings under current unbilled receivables. Unbilled receivables, Balance at Beginning of Period Unbilled receivables, Revenue Recognized In Advance of Billings Unbilled Receivables Current Revenue Recognized In Advance Of Billings Unbilled receivables, Billings Unbilled Receivables Current Billings Unbilled receivables, Balance at End of Period Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received during the period. Deferred revenue, Balance at Beginning of Period Contract With Customer Liability Deferred revenue, Billings Contract With Customer Liability Increase Decrease For Contract Acquired In Business Combination Deferred revenue, Revenue Recognized Contract With Customer Liability Revenue Recognized Additions Made During Period Deferred revenue, Balance at End of Period Revenue, Practical Expedient, Incremental Cost of Obtaining Contract [true false] Revenue Practical Expedient Incremental Cost Of Obtaining Contract Software costs capitalized during period Capitalized Computer Software Additions Cash and cash equivalents, in excess of federally insured deposit limits Cash F D I C Insured Amount Percentage of accounts receivable and unbilled receivables owned by customers. Percentage of accounts receivable and unbilled receivables owned by customers Percentage Of Accounts Receivable And Unbilled Receivables Owned By Customers Concentration Risk [Table] Concentration Risk [Table] Concentration Risk Benchmark Concentration Risk By Benchmark [Axis] Concentration Risk Benchmark Concentration Risk Benchmark [Domain] Accounts Receivable [Member] Accounts Receivable [Member] Concentration Risk Type Concentration Risk By Type [Axis] Concentration Risk Type Concentration Risk Type [Domain] Credit Concentration Risk [Member] Credit Concentration Risk [Member] Customer Major Customers [Axis] Customer Name Of Major Customer [Domain] Represents information regarding major customer A. Customer A [Member] Customer A [Member] Represents information regarding major customer B. Customer B [Member] Customer B [Member] Revenue [Member] Sales Revenue Net [Member] Customer Concentration Risk [Member] Customer Concentration Risk [Member] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Concentration Risk [Line Items] Concentration risk, percentage Concentration Risk Percentage1 Revenue From Contract With Customer [Abstract] Disaggregation Of Revenue [Table] Disaggregation Of Revenue [Table] Consolidation Items Consolidation Items [Axis] Consolidation Items Consolidation Items [Domain] Operating Segments Operating Segments [Member] Geographical Statement Geographical [Axis] Geographical Segment Geographical [Domain] United States UNITED STATES United Kingdom UNITED KINGDOM Rest of world. Rest of World Rest Of World [Member] Disaggregation of Revenue [Line Items] Disaggregation Of Revenue [Line Items] Segments Statement Business Segments [Axis] Segments Segment [Domain] Represents information of biometrics segment. Biometrics Biometrics [Member] Represents information regarding imaging segment. Imaging Imaging [Member] Timing of Transfer of Good or Service Timing Of Transfer Of Good Or Service [Axis] Timing of Transfer of Good or Service Timing Of Transfer Of Good Or Service [Domain] Goods or services transferred at a point in time Transferred At Point In Time [Member] Goods or services transferred over time Transferred Over Time [Member] Land Land [Member] Building and Improvements Building And Building Improvements [Member] Computer Equipment Computer Equipment [Member] Purchased software Software And Software Development Costs [Member] Office Equipment Office Equipment [Member] Property and Equipment Public Utility Property Plant And Equipment [Line Items] Total Property Plant And Equipment Gross Less accumulated depreciation Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Property and equipment, net Depreciation expense Depreciation Schedule Of Business Acquisitions By Acquisition [Table] Schedule Of Business Acquisitions By Acquisition [Table] Business Acquisition Business Acquisition [Axis] Business Acquisition, Acquiree Business Acquisition Acquiree [Domain] Bill of sale and assignment agreement. Bill of Sale and Assignment Agreement Bill Of Sale And Assignment Agreement [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Cash consideration to acquire business Payments To Acquire Businesses Gross Business acquisition date of agreement Business Acquisition Date Of Acquisition Agreement1 Business combination, recognized identifiable assets acquired and liabilities assumed, non-cash working capital, net of deferred revenue. Indefinite-lived Intangible Assets Indefinite Lived Intangible Assets By Major Class [Axis] Indefinite-lived Intangible Assets, Major Class Name Indefinite Lived Intangible Assets Major Class Name [Domain] Customer Relationships Customer Relationships [Member] Developed Technology Technology Based Intangible Assets [Member] Trade Name / Trademarks Trademarks And Trade Names [Member] Net working capital, excluding deferred revenue Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Non Cash Working Capital Net Of Deferred Revenue Intangible assets acquired Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Intangible Assets Other Than Goodwill Gross assets acquired Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets Deferred revenue Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities Deferred Revenue Net assets acquired Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net Finite Lived Intangible Assets Acquired As Part Of Business Combination [Table] Finite Lived Intangible Assets Acquired As Part Of Business Combination [Table] Tradenames Trade Names [Member] Acquired Finite Lived Intangible Assets [Line Items] Acquired Finite Lived Intangible Assets [Line Items] Estimated useful live Finite Lived Intangible Asset Useful Life Gross Amount Finite Lived Intangible Assets Gross Accumulated Amortization Finite Lived Intangible Assets Accumulated Amortization Net Book Value Finite Lived Intangible Assets Net Amortization of intangible assets Amortization Of Intangible Assets Finite Lived Intangible Assets Net Amortization Expense Rolling Maturity [Abstract] 2021 Finite Lived Intangible Assets Amortization Expense Next Rolling Twelve Months 2022 Finite Lived Intangible Assets Amortization Expense Rolling Year Two 2023 Finite Lived Intangible Assets Amortization Expense Rolling Year Three 2024 Finite Lived Intangible Assets Amortization Expense Rolling Year Four 2025 Finite Lived Intangible Assets Amortization Expense Rolling Year Five Thereafter Finite Lived Intangible Assets Amortization Expense Rolling After Year Five Income Tax Disclosure. Income Tax Examination [Table] Income Tax Examination [Table] Unusual Risk or Uncertainty, Nature Unusual Risk Or Uncertainty By Nature [Axis] Unusual Risk or Uncertainty, Nature Unusual Risk Or Uncertainty Nature [Domain] CARES Act. CARES Act C A R E S Act [Member] Income Tax Disclosure [Line Items] Income Tax Disclosure [Line Items] Income tax expense (Benefit) Current: Current Income Tax Expense Benefit Continuing Operations [Abstract] Federal Current Federal Tax Expense Benefit State Current State And Local Tax Expense Benefit Total current tax Current Income Tax Expense Benefit Deferred: Deferred Income Tax Expense Benefit Continuing Operations [Abstract] Federal Deferred Federal Income Tax Expense Benefit State Deferred State And Local Income Tax Expense Benefit Total deferred tax Deferred Income Tax Expense Benefit Provision for (benefit from) income taxes Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates permanent adjustments. Effective income tax rate reconciliation expiration of statues on uncertain tax positions. Effective income tax rate reconciliation net operating loss carryback rate benefit under CARES Act. Federal statutory rate Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate State rate, net of federal benefit Effective Income Tax Rate Reconciliation State And Local Income Taxes Tax credits Effective Income Tax Rate Reconciliation Tax Credits Permanent adjustments Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Permanent Adjustments Change in valuation allowance Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance Expiration of statutes on uncertain tax positions Effective Income Tax Rate Reconciliation Expiration Of Statues On Uncertain Tax Positions Net operating loss carryback rate benefit under CARES Act Effective Income Tax Rate Reconciliation Net Operating Loss Carryback Rate Benefit Under C A R E S Act Other Effective Income Tax Rate Reconciliation Other Reconciling Items Percent Effective tax rate Effective Income Tax Rate Continuing Operations Deferred tax assets Deferred Tax Assets Net Depreciation Deferred Tax Assets Property Plant And Equipment Stock compensation Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost Research and development credits Deferred Tax Assets In Process Research And Development Net operating loss Deferred Tax Assets Operating Loss Carryforwards Other Deferred Tax Assets Other Tax Carryforwards Total Deferred Tax Assets Gross Less valuation allowance Deferred Tax Assets Valuation Allowance Deferred tax assets, net Represents the information pertaining to pre tax gain (loss). Pre Tax Gain (Loss) Pre Tax Gain Loss Valuation allowance Tax Credit Carryforward [Table] Tax Credit Carryforward [Table] Tax Credit Carryforward Tax Credit Carryforward [Axis] Tax Credit Carryforward, Name Tax Credit Carryforward Name [Domain] Research Tax Credit Carryforward [Member] Research [Member] Tax Credit Carryforward [Line Items] Tax Credit Carryforward [Line Items] Uncertain tax positions at December 31 Unrecognized Tax Benefits Increase due to positions taken in prior periods Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions Decrease due to positions taken in prior periods Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions Uncertain tax positions at December 31 Uncertain tax positions Unrecognized Tax Benefits That Would Impact Effective Tax Rate Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Plan Name Plan Name [Axis] Plan Name Plan Name [Domain] Represents information of stock option plan 2001. 2001 Nonqualified Stock Plan Stock Option Plan2001 [Member] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Number of stock awards authorized to grant Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized Number of stock awards available for grant Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Term of options granted at exercise prices Share Based Compensation Arrangement By Share Based Payment Award Award Requisite Service Period1 Term of options vested Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Income Statement Location Income Statement Location [Axis] Income Statement Location Income Statement Location [Domain] Primary financial statement caption in which reported facts about cost of services have been included. Cost of services Cost Of Services [Member] Research and development Research And Development Expense [Member] Selling and marketing Selling And Marketing Expense [Member] General and administrative General And Administrative Expense [Member] Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Total stock-based compensation expense Allocated Share Based Compensation Expense Award Type Award Type [Axis] Award Type Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Stock options Employee Stock Option [Member] Shares that an entity has not yet issued because the agreed-upon consideration, such as employee services, has not yet been received. Unrestricted Stock Unrestricted Stock [Member] Award Date Award Date [Axis] Award Date Award Date [Domain] Grant date 2020. 2020 Grant Grant Date Two Thousand Twenty [Member] Title of Individual Title Of Individual [Axis] Title of Individual Title Of Individual With Relationship To Entity [Domain] Executive of the entity that is appointed to the position by the board of directors, officer and employees. Directors, officers and employees Directors Officer And Employees [Member] It represents the information pertaining to grant date of March and May 2020. March and May 2020 grant Grant Date March And May2020 [Member] Represents 2001 Nonqualified Stock Plan. 2001 Nonqualified Stock Plan Nonqualified Stock Plan2001 [Member] Represents the information pertaining to 2019. 2019 Grant Grant2019 [Member] Represents the information about grant 2019 two. Grant 2019 Two Grant2019 Two [Member] Represents the information pertaining to march 2019. March 2019 Grant Grant Date March2019 [Member] Number of stock options granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Expected term Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 Expected volatility factor Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Expected volatility factor, minimum Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum Expected volatility factor, maximum Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum Risk-free interest rate Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Risk-free interest rate, minimum Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum Risk-free interest rate, maximum Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum Expected annual dividend yield Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Payments Number of shares granted (in shares) Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Represents the number of equal installments for shares issuance. Number of installment Number Of Equal Installments For Shares Issuance Amount of unamortized share-based compensation charges. Unamortized share-based compensation charges Unamortized Share Based Compensation Charges Number of common stock shares surrendered by employees withholding taxes Shares Paid For Tax Withholding For Share Based Compensation Common stock value surrendered by employees withholding taxes Adjustments Related To Tax Withholding For Share Based Compensation Gross number of share for unrestricted stock granted during the period. Number of share for unrestricted stock issued during the period. Number of unrestricted stock granted Share Based Compensation Arrangement By Share Based Payment Award Unrestricted Stock Grants In Period Gross Number of unrestricted shares issued Share Based Compensation Arrangement By Share Based Payment Award Unrestricted Stock Issued In Period Stock-based compensation expense charged to expense Restricted Stock Expense Remaining stock based compensation expense Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Total stock based compensation for the entire grant. Performance Share Awards Performance Shares [Member] Officer Officer [Member] Represents information pertaining to 2019 performance shares grant. October 2019 Grant October2019 Grant [Member] Share based compensation expense for the total grant Share Based Compensation Expense For Total Grant Stock Option [Member] Stock Option [Member] Shares Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Roll Forward Outstanding at beginning of year Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Exercised Forfeited or cancelled Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Outstanding at end of year Exercisable at year end Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number Weighted Average Exercise Price Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Rollforward Outstanding at beginning of year Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Granted Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price Exercised Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price Forfeited or cancelled Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price Outstanding at end of year Exercisable at year end Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price Number of options outstanding Number of shares vested Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Number Of Shares Weighted average exercise price of options outstanding Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 Weighted average remaining contractual term Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 Aggregate intrinsic value of options outstanding Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value Aggregate intrinsic value of options exercisable Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 Exercise Price Range Share Based Compensation Shares Authorized Under Stock Option Plans By Exercise Price Range [Axis] Exercise Price Range Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Domain] Represents the exercise price range of $4 to $5 for option outstanding and exercisable. Exercise price range $4 to $5 Exercise Price4 To5 [Member] Represents the exercise price range of $5 to $6 for option outstanding and exercisable. Exercise price range $5 to $6 Exercise Price5 To6 [Member] Represents the exercise price range of $6 to $7 for option outstanding and exercisable. Exercise price range $6 to $7 Exercise Price6 To7 [Member] Represents the exercise price range of $7 to $8 for option outstanding and exercisable. Exercise price range $7 to $8 Exercise Price7 To8 [Member] EQUITY AND STOCK COMPENSATION PLANS Exercise price range (lower) Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Lower Range Limit Exercise price range (upper) Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Upper Range Limit Options outstanding, Number Options exercisable, Number Options outstanding, Weighted average remaining contractual term (in years) Options outstanding, Weighted average exercise price Options exercisable, Weighted average exercise price Amount of unrecognized compensation expense related to non-vested options. Amount of unrecognized compensation expense related to non-vested options Share Based Compensation Arrangement By Share Based Payment Award Options Nonvested Unrecognized Compensation Expense Weighted average period for nonvested options Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 Represents the percentage of common stock at a price lower of the fair market value. Represents the period of common stock offering. Represents the percentage of minimal discount of fair market value of the common stock. Represents the percentage of employee's compensation. Represents the aggregate number of common shares reserved for future issuance. Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan [Member] Percentage of common stock at a price lower of the fair market value Percentage Of Common Stock Price Lower Of Fair Market Value Period of common stock offering Period Of Common Stock Offering Minimal discount of fair market value of the common stock Percentage Minimal Discount Of Fair Market Value Of Common Stock Percentage of employee's compensation Percentage Of Employee Compensation Total number of common stock shares reserved for issuance Total Common Stock Capital Shares Reserved For Future Issuance Number of common stock shares reserved for issuance Common Stock Capital Shares Reserved For Future Issuance Amount utilized under the stock repurchase program. Share Repurchase Program Share Repurchase Program [Axis] Share Repurchase Program Share Repurchase Program [Domain] Information of Share Purchases. Share Purchases Share Purchases [Member] Number of common stock authorized for repurchase Stock Repurchase Program Authorized Amount1 Amount utilized under the program Stock Repurchase Program Amount Utilized Number of stock repurchased Stock Repurchased And Retired During Period Shares Defined Contribution Plan [Table] Defined Contribution Plan [Table] Retirement Plan Type Retirement Plan Type [Axis] Retirement Plan Type Retirement Plan Type [Domain] Plan that defines the amount of 401 (k) retirement benefit to be provided. Retirement Plans 401 K Defined Benefit Retirement Plans401 K Defined Benefit [Member] Defined Contribution Plan Disclosure [Line Items] Defined Contribution Plan Disclosure [Line Items] Discretionary contribution by employer Defined Contribution Plan Employer Discretionary Contribution Amount Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Antidilutive Securities Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis] Antidilutive Securities, Name Antidilutive Securities Name [Domain] Stock Options Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive securities excluded from computation of earnings per share (in shares) Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Net income (loss) Shares outstanding: Weighted Average Number Of Shares Outstanding [Abstract] Weighted-average common shares outstanding (in shares) Additional dilutive common stock equivalents (in shares) Incremental Common Shares Attributable To Share Based Payment Arrangements Diluted shares outstanding (in shares) Net income (loss) per share – basic (in dollars per share) Net income (loss) per share - diluted (in dollars per share)