Entity Central Index Key Available for sale debt trading securities accumulated gross unrealized gain before tax. Available for sale debt trading securities accumulated gross unrealized gain before tax. Available for sale securities and trading securities. Equity Securities Fv Ni Accumulated Gross Unrealized Gain Before Tax. Equity securities fv ni accumulated gross unrealized loss before tax. Available for sale securities debt, equity securities and trading securities unrealized gain before tax. Available for sale securities debt, equity securities and trading securities unrealized loss before tax. Available for sale securities debt equity securities and trading securities. Cover [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Current Reporting Status Entity Current Reporting Status Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Ex Transition Period Entity Ex Transition Period Entity Shell Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Entity File Number Entity File Number 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 Title of 12(b) Security Security12b Title Security Exchange Name Security Exchange Name Entity Interactive Data Current Entity Interactive Data Current Document Quarterly Report Document Quarterly Report Document Transition Report Document Transition Report Entity Incorporation, State or Country Code Entity Incorporation State Country Code Available for sale securities debt equity securities and trading securities current. Customer deposit. Investment margin liabilities current. Statement Of Financial Position [Abstract] Assets Assets [Abstract] Current assets Assets Current [Abstract] Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Marketable securities Available For Sale Securities Debt Equity Securities And Trading Securities Current Trade accounts receivable, net of allowance for credit losses of $3,850 and $1,898 as of March 31, 2021 and December 31, 2020, respectively Accounts Receivable Net Current Other current assets Other Assets Current Total current assets Assets Current Marketable securities, long-term Available For Sale Securities Debt Securities Noncurrent Fixed assets, net Property Plant And Equipment Net Other long-term assets Other Assets Noncurrent Total assets Assets Liabilities and Stockholders’ Equity Liabilities And Stockholders Equity [Abstract] Current liabilities Liabilities Current [Abstract] Accounts payable Accounts Payable Current Income tax payable Taxes Payable Current Contract liabilities Contract With Customer Liability Current Customer deposit Customer Deposit Investment margin loan Investment Margin Liabilities Current Other current liabilities Other Liabilities Current Total current liabilities Liabilities Current Unrecognized tax benefits Unrecognized Tax Benefits Other long-term liabilities Other Liabilities Noncurrent Total liabilities Liabilities Commitments and contingencies (Note 8) Commitments And Contingencies Stockholders’ equity Stockholders Equity [Abstract] Common stock, $0.0001 par value per share, 50,000 shares authorized, 28,989 and 28,178 shares issued and outstanding at March 31, 2021 and December 31, 2020, respectively Common Stock Value Preferred stock, $0.0001 par value per share, 1,000 shares authorized, no shares issued or outstanding at March 31, 2021 and December 31, 2020 Preferred Stock Value Additional paid-in capital Additional Paid In Capital Common Stock Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income Loss Net Of Tax Retained earnings Retained Earnings Accumulated Deficit Total stockholders’ equity Stockholders Equity Total liabilities and stockholders’ equity Liabilities And Stockholders Equity Allowance for credit losses Allowance For Doubtful Accounts Receivable Common stock, par value 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 Preferred stock, par value Preferred Stock Par Or Stated Value Per Share Preferred stock, shares authorized Preferred Stock Shares Authorized Preferred stock, shares issued Preferred Stock Shares Issued Preferred stock, shares outstanding Preferred Stock Shares Outstanding Income loss before equity in net income loss of investee. Income Statement [Abstract] Revenue Revenue From Contract With Customer Excluding Assessed Tax Cost of revenue Cost Of Revenue Gross profit Gross Profit Operating expenses: Operating Expenses [Abstract] Research and development Research And Development Expense Selling and marketing Selling And Marketing Expense General and administrative General And Administrative Expense Total operating expenses Operating Expenses Operating income (loss) Operating Income Loss Interest and other income, net Interest And Other Income Income (loss) before income taxes and equity loss in investee Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments Provision for income taxes Income Tax Expense Benefit Income (loss) before equity loss in investee Income Loss Before Equity In Net Income Loss Of Investee Equity loss in investee Income Loss From Equity Method Investments Net income (loss) Net Income Loss Net income (loss) per common share: Earnings Per Share Basic And Diluted [Abstract] Basic Income Loss From Continuing Operations Per Basic Share Diluted Income Loss From Continuing Operations Per Diluted Share Weighted-average common shares: Earnings Per Share Basic And Diluted Other Disclosures [Abstract] Basic Weighted Average Number Of Shares Outstanding Basic Diluted Weighted Average Number Of Diluted Shares Outstanding Statement Of Income And Comprehensive Income [Abstract] Net income (loss) Other comprehensive loss: Other Comprehensive Income Loss Net Of Tax Period Increase Decrease [Abstract] Foreign currency translation loss Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax Net unrealized loss on marketable securities, net of tax Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax Comprehensive income (loss) Comprehensive Income Net Of Tax Statement Of Stockholders Equity [Abstract] Statement [Table] Statement [Table] Accumulated Other Comprehensive Income (Loss) Statement Equity Components [Axis] Equity Component Equity Component [Domain] Stockholders' Equity Common Stock [Member] Additional Paid-In Capital Additional Paid In Capital [Member] Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income [Member] Retained Earnings (Accumulated Deficit) Retained Earnings [Member] Cumulative Effect, Period of Adoption Cumulative Effect Period Of Adoption [Axis] Cumulative Effect, Period of Adoption Cumulative Effect Period Of Adoption [Domain] Cumulative Effect, Period of Adoption, Adjustment Cumulative Effect Period Of Adoption Adjustment [Member] Statement [Line Items] Statement [Line Items] Beginning Balance Beginning Balance, Shares Equity-based compensation Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Exercise of common stock options Stock Issued During Period Value Stock Options Exercised Exercise of common stock options, Shares Stock Issued During Period Shares Stock Options Exercised Restricted stock awards Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures Restricted stock awards, Shares Stock Issued During Period Shares Restricted Stock Award Net Of Forfeitures Common stock withholding for employee tax obligations Adjustments Related To Tax Withholding For Share Based Compensation Common stock withholding for employee tax obligations, Shares Shares Paid For Tax Withholding For Share Based Compensation Repurchases of capital stock Stock Repurchased During Period Value Repurchases of capital stock, Shares Stock Repurchased During Period Shares Issuance of common stock Stock Issued During Period Value New Issues Issuance of common stock, Shares Stock Issued During Period Shares New Issues Other comprehensive gain (loss) Other Comprehensive Income Loss Net Of Tax Cumulative tax effect of accounting change Income Tax Effects Allocated Directly To Equity Cumulative Effect Of Change In Accounting Principle Ending Balance Ending Balance, Shares Collaborative Arrangement and Arrangement Other than Collaborative Type Of Arrangement [Axis] Collaborative Arrangement and Arrangement Other than Collaborative Arrangements And Nonarrangement Transactions [Member] November two thousand twenty equity distribution agreement. November 2020 Equity Distribution Agreement November Two Thousand Twenty Equity Distribution Agreement [Member] Selling price per share Sale Of Stock Price Per Share Noncash lease expense. Unrecognized tax benefits operating activities. Holding income loss on equity securities. Increase (decrease) in customer deposit. Increase (decrease) in operating lease liabilities. Operating lease right-of-use assets reduced due to lease modification. Non cash or part non cash Investment in marketable securities. Noncash or part noncash public offering costs included in accounts payable. Statement Of Cash Flows [Abstract] Cash flow from operating activities: Net Cash Provided By Used In Operating Activities [Abstract] Net income (loss) Profit Loss Adjustments to reconcile net income (loss) to net cash provided by operating activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Equity-based compensation Share Based Compensation Depreciation Depreciation Noncash lease expense Noncash Lease Expense Loss on disposal of fixed asset Gain Loss On Disposition Of Assets Amortization of premium of marketable securities Investment Income Amortization Of Premium Provision for credit losses Provision For Doubtful Accounts Deferred taxes Deferred Income Tax Expense Benefit Unrecognized tax benefits Unrecognized Tax Benefits Operating Activities Holding loss on equity securities Holding Income Loss On Equity Securities Equity loss in investee Other Other Noncash Income Expense Changes in operating assets and liabilities: Increase Decrease In Operating Capital [Abstract] Trade accounts receivable Increase Decrease In Accounts Receivable Other current and long-term assets Increase Decrease In Other Operating Assets Accounts payable Increase Decrease In Accounts Payable Income tax payable Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable Other current liabilities Increase Decrease In Other Current Liabilities Contract liabilities Increase Decrease In Contract With Customer Liability Customer deposit Increase Decrease In Customer Deposit Operating lease liabilities Increase Decrease In Operating Lease Liabilities Net cash provided by operating activities Net Cash Provided By Used In Operating Activities Cash flow from investing activities: Net Cash Provided By Used In Investing Activities [Abstract] Purchases of fixed assets Payments To Acquire Property Plant And Equipment Proceeds from sale of fixed assets Proceeds From Sale Of Property Plant And Equipment Purchase of marketable securities Payments To Acquire Marketable Securities Maturities of marketable securities Proceeds From Sale And Maturity Of Marketable Securities Net cash used in investing activities Net Cash Provided By Used In Investing Activities Cash flow from financing activities: Net Cash Provided By Used In Financing Activities [Abstract] Proceeds from (payment for) public offerings of common stock, net of issuance costs Proceeds From Issuance Of Common Stock Proceeds from exercise of stock options Proceeds From Stock Options Exercised Repurchases of capital stock Payments For Repurchase Of Common Stock Borrowing under margin account Proceeds From Issuance Of Debt Net cash provided by (used in) financing activities Net Cash Provided By Used In Financing Activities Effect of exchange rate changes on cash and cash equivalents Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Net increase (decrease) in cash and cash equivalents Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Cash and cash equivalents at beginning of period Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Cash and cash equivalents at end of period Supplemental disclosures of cash flow information: Supplemental Cash Flow Information [Abstract] Income taxes paid Income Taxes Paid Supplemental disclosures of non-cash investing and financing activities: Noncash Investing And Financing Items [Abstract] Purchases of fixed assets in accounts payable Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 Operating lease right-of-use assets obtained in exchange for lease liabilities Right Of Use Asset Obtained In Exchange For Operating Lease Liability Operating lease right-of-use assets reduced due to lease modification Operating Lease Right Of Use Assets Reduced Due To Lease Modification Purchase of marketable securities in other current liabilities Non Cash Or Part Non Cash Investment In Marketable Securities Public offerings costs included in accounts payable Noncash Or Part Noncash Public Offering Costs Included In Accounts Payable Organization Consolidation And Presentation Of Financial Statements [Abstract] Overview and Basis of Presentation Business Description And Basis Of Presentation [Text Block] Accounting Policies [Abstract] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Investments Debt And Equity Securities [Abstract] Marketable Securities Investments In Debt And Equity Instruments Cash And Cash Equivalents Unrealized And Realized Gains Losses [Text Block] Fair Value Disclosures [Abstract] Fair Value Measurements Fair Value Measurement Inputs Disclosure [Text Block] Property Plant And Equipment [Abstract] Fixed Assets Property Plant And Equipment Disclosure [Text Block] Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract] Other Current Assets Other Current Assets [Text Block] Segment Reporting [Abstract] Reporting Segment and Geographic Information Segment Reporting Disclosure [Text Block] Debt, commitments and contingencies disclosure. Debt, commitments and contingencies disclosure. Debt Commitments And Contingencies Disclosure [Abstract] Debt, Commitments and Contingencies Debt Commitments And Contingencies Disclosure [Text Block] Lessor and lessee. operating leases. Leases [Abstract] Leases Lessor And Lessee Operating Leases [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Equity-Based Compensation Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Income Tax Disclosure [Abstract] Provision for Income Taxes Income Tax Disclosure [Text Block] Earnings Per Share [Abstract] Income (Loss) Per Share Earnings Per Share [Text Block] Related Party Transactions [Abstract] Related Parties Related Party Transactions Disclosure [Text Block] Equity Method Investments And Joint Ventures [Abstract] Equity Method Investments Equity Method Investments Disclosure [Text Block] Equity distribution agreements disclosure. Equity [Abstract] Equity Distribution Agreement Equity Distribution Agreements Disclosure [Text Block] Use of Estimates Use Of Estimates Foreign Currency Translation and Foreign Currency Transactions Foreign Currency Transactions And Translations Policy [Text Block] Leases Lessee Leases Policy [Text Block] Concentration of Customers Concentration Risk Credit Risk Revenue from Contracts with Customers Revenue From Contract With Customer Policy [Text Block] Reagents and supplies. Reagents and Supplies Reagents And Supplies Policy [Text Block] Customer deposit. Customer Deposit Customer Deposit Policy [Text Block] Trade accounts receivable and allowance for credit losses. Trade Accounts Receivable And Allowance For Credit Losses Trade Accounts Receivable And Allowance For Credit Losses Policy [Text Block] Marketable Securities Marketable Securities Policy Recently Adopted and Recent Accounting Pronouncements New Accounting Pronouncements Policy Policy [Text Block] Accounting Standards Update Adjustments For New Accounting Pronouncements [Axis] Accounting Standards Update Type Of Adoption [Member] Accounting Standards Update 2014-09 Accounting Standards Update201409 [Member] Summary of Revenue from Contracts with Customers by Payor Type Disaggregation Of Revenue Table [Text Block] Schedule of available for sale debt securities and equity/trading securities reconciliation. Summary of Marketable Securities Schedule Of Available For Sale Debt Securities And Equity Trading Securities Reconciliation Table [Text Block] Information about Financial Assets Measured at Fair Value on Recurring Basis Based on Three-Tier Fair Value Hierarchy Fair Value Assets Measured On Recurring Basis [Text Block] Major Classes of Fixed Assets Property Plant And Equipment [Text Block] Schedule of Other Current Assets Schedule Of Other Current Assets Table [Text Block] Summary of Revenue by Geographic Region Revenue From External Customers By Geographic Areas Table [Text Block] Schedule of lease right-of-use asset, short-term lease liabilities, and long-term lease liabilities. Schedule of Lease Right-of-Use Asset, Short-term Lease Liabilities, and Long-term Lease Liabilities Schedule Of Lease Right Of Use Asset Short Term Lease Liabilities And Long Term Lease Liabilities Table [Text Block] Schedule of Operating Lease Expense Lease Cost Table [Text Block] Schedule of supplemental information related to leases. Schedule of Supplemental Information Related to Leases Schedule Of Supplemental Information Related To Leases Table [Text Block] Schedule of Maturity Analysis of Operating Lease Liabilities using Undiscounted Cash Flows on an Annual Basis Lessee Operating Lease Liability Maturity Table [Text Block] Schedule of Lease Income Operating Lease Lease Income Table [Text Block] Schedule of Future Fixed Lease Payments from Tenants for All Noncancelable Operating Leases Lessor Operating Lease Payments To Be Received Maturity Table [Text Block] Summary of Equity-Based Compensation Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Text Block] Reconciliation of Basic and Diluted Income (Loss) Per Share Computations Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Anti-dilutive Securities Excluded from Calculation of Diluted Income (Loss) Per Share Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Text Block] Summary of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Concentration Risk Type Concentration Risk By Type [Axis] Concentration Risk Type Concentration Risk Type [Domain] Customer Concentration Risk Customer Concentration Risk [Member] Concentration Risk Benchmark Concentration Risk By Benchmark [Axis] Concentration Risk Benchmark Concentration Risk Benchmark [Domain] Revenue Sales Revenue Net [Member] Accounts Receivable Accounts Receivable [Member] Statistical Measurement Range [Axis] Statistical Measurement Range [Member] Maximum Maximum [Member] Minimum Minimum [Member] Balance Sheet Location Balance Sheet Location [Axis] Balance Sheet Location Balance Sheet Location [Domain] Other Current Assets Other Current Assets [Member] ASU 2016-13 Accounting Standards Update201613 [Member] Retained Earnings Other Long-Term Assets Other Noncurrent Assets [Member] 2019-12 Accounting Standards Update201912 [Member] Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Foreign currency, losses from remeasurements Foreign Currency Transaction Gain Loss Before Tax Number of customers. Number of customers Number Of Customers Concentration risk, percentage Concentration Risk Percentage1 Disaggregation Of Revenue [Table] Disaggregation Of Revenue [Table] Customer Major Customers [Axis] Customer Name Of Major Customer [Domain] Clinical institutional contracts. Clinical Institutional Contracts Clinical Institutional Contracts [Member] Clinical patients contracts. Clinical Patient Contracts Clinical Patient Contracts [Member] Clinical insurance contracts. Clinical Insurance Contracts Clinical Insurance Contracts [Member] Disaggregation Of Revenue [Line Items] Disaggregation Of Revenue [Line Items] Type of Revenue [Extensible List] Type Of Revenue Extensible List Revenue from contracts with customers by payor type Receivables from contract with customers Contract assets from contract with customers Contract With Customer Asset Net Contract liability Contract with customer liability, revenue recognized Contract With Customer Liability Revenue Recognized Practical expedient not to disclose amount of transaction price allocated to unsatisfied performance obligations Revenue Practical Expedient Remaining Performance Obligation Reagents and supplies current. Reagents and supplies Reagents And Supplies Current Provision for credit losses for accounts receivable Securities maturity period. Securities maturity period from date of purchase Securities Maturity Period Stockholders' equity Cumulative tax effect Accounting Standards Update [Extensible List] Accounting Standards Update Extensible List Accounting standards update, adopted Change In Accounting Principle Accounting Standards Update Adopted Accounting standards update, immaterial effect Change In Accounting Principle Accounting Standards Update Immaterial Effect Available for sale securities and trading securities cost. Available for sale securities debt, equity securities and trading securities amortized cost basis. Schedule Of Trading Securities And Other Trading Assets [Table] Schedule Of Trading Securities And Other Trading Assets [Table] Investment Secondary Categorization Investment Secondary Categorization [Axis] Investments by Secondary Categorization Investments By Secondary Categorization [Domain] Short-term marketable securites. Short-Term Marketable Securities Short Term Marketable Securites [Member] Long-term marketable securities. Long-Term Marketable Securities Long Term Marketable Securities [Member] Investment Type Investment Type [Axis] Investments Investment Type Categorization [Member] Money Market Accounts Money Market Funds [Member] Bond Fund Bonds [Member] Exchange Traded Funds Exchange Traded Funds [Member] Corporate Debt Securities Corporate Debt Securities [Member] Cash Equivalents Cash Equivalents [Member] U.S. Government Agency Debt Securities U S Government Agencies Debt Securities [Member] Yankee debt securities. Yankee Debt Securities Yankee Debt Securities [Member] Schedule Of Trading Securities And Other Trading Assets [Line Items] Schedule Of Trading Securities And Other Trading Assets [Line Items] Marketable securities, Amortized Cost Basis Available For Sale Securities And Trading Securities Cost Marketable securities, Unrealized Gains Available For Sale Debt Trading Securities Accumulated Gross Unrealized Gain Before Tax Marketable securities, Unrealized Losses Available For Sale Debt Trading Securities Accumulated Gross Unrealized Loss Before Tax Marketable securities, Aggregate Fair Value Available For Sale Securities And Trading Securities Less: Cash equivalents Cash Equivalents At Carrying Value Cash and cash equivalents fair value disclosure Cash And Cash Equivalents Fair Value Disclosure Marketable securities, Amortized Cost Basis Equity Securities Fv Ni Cost Marketable securities, Unrealized Gains Equity Securities Fv Ni Accumulated Gross Unrealized Gain Before Tax Marketable securities, Unrealized Losses Equity Securities Fv Ni Accumulated Gross Unrealized Loss Before Tax Marketable securities, Aggregate Fair Value Equity Securities Fv Ni Marketable securities, Amortized Cost Basis Available For Sale Securities Debt Equity Securities And Trading Securities Amortized Cost Basis Marketable securities, Unrealized Gains Available For Sale Securities Debt Equity Securities And Trading Securities Unrealized Gain Before Tax Marketable securities, Unrealized Losses Available For Sale Securities Debt Equity Securities And Trading Securities Unrealized Loss Before Tax Marketable securities, Aggregate Fair Value Available For Sale Securities Debt Equity Securities And Trading Securities Available for sale debt securities and equity/trading securities gross unrealized loss. Cash equivalents and available for sale debt and securities. Schedule of available-for-sale and trading securities. Schedule of available-for-sale and trading securities. Schedule Of Available For Sale And Trading Securities [Table] Schedule Of Available For Sale And Trading Securities [Table] Credit Facility Credit Facility [Axis] Credit Facility Credit Facility [Domain] Margin account borrowing. Margin Account Borrowing Margin Account Borrowing [Member] Schedule Of Available For Sale And Trading Securities [Line Items] Schedule Of Available For Sale And Trading Securities [Line Items] Gross unrealized loss Available For Sale Debt Securities And Equity Trading Securities Gross Unrealized Loss Cash equivalent and available for sale debt securities Cash Equivalents And Available For Sale And Debt Securities Outstanding borrowing amount Credit losses Debt Securities Available For Sale Allowance For Credit Loss Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Measurement Frequency Fair Value By Measurement Frequency [Axis] Measurement Frequency Fair Value Measurement Frequency [Domain] Fair Value Measurements Recurring Fair Value Measurements Recurring [Member] Asset Class Fair Value By Asset Class [Axis] Asset Class Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation By Asset Class [Domain] Level 2 Fair Value By Fair Value Hierarchy Level [Axis] Fair Value Hierarchy and NAV Fair Value Measurements Fair Value Hierarchy [Domain] Level 1 Fair Value Inputs Level1 [Member] Level 2 Fair Value Inputs Level2 [Member] Level 3 Fair Value Inputs Level3 [Member] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] Total equity trading securities Total marketable securities Available For Sale Securities Debt Securities Cash and cash equivalents fair value disclosure Total marketable securities and cash equivalents Assets Fair Value Disclosure Fair value assets, transfers between levels, amount. Fair value asset, investments measured using unobservable inputs Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value Fair value assets, transfers between levels, amount Fair Value Assets Transfers Between Levels Amount 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] Computer Hardware Computer Equipment [Member] Building Building [Member] Computer Software Software Development [Member] Aircraft. Aircraft Aircraft [Member] Medical lab equipment. Medical Lab Equipment Medical Lab Equipment [Member] Furniture and Fixtures Furniture And Fixtures [Member] Building Improvements Building Improvements [Member] Leasehold Improvements Leasehold Improvements [Member] Assets not yet placed in service. Assets Not Yet Placed in Service Assets Not Yet Placed In Service [Member] Land Improvements Land Improvements [Member] Automobile. Automobile Automobile [Member] General equipment. General Equipment General Equipment [Member] Land Land [Member] Property Plant And Equipment [Line Items] Property Plant And Equipment [Line Items] Fixed assets, gross Property Plant And Equipment Gross Less: Accumulated depreciation Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Fixed assets, net Useful life in years Property Plant And Equipment Useful Life Useful life in years Property Plant And Equipment Estimated Useful Lives Depreciation expense on fixed assets Marketable securities interest receivable current. Other current assets. Other Current Assets [Abstract] Prepaid expenses Prepaid Expense Current Marketable securities interest receivable Marketable Securities Interest Receivable Current Contract assets Contract With Customer Asset Net Current Prepaid income taxes Prepaid Taxes Other receivable Other Receivables Net Current Total Number of reporting segments Number Of Reportable Segments Schedule Of Segment Reporting Information By Segment [Table] Schedule Of Segment Reporting Information By Segment [Table] Geographical Statement Geographical [Axis] Geographical Segment Geographical [Domain] United States UNITED STATES Foreign Non Us [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Debt security investment outstanding borrowing amount. Payments for closing of escrow, financed under margin loan. Debt instrument interest rate at end of period. Debt Instrument Interest Rate at Beginning of Period. Debt, commitments and contingencies. Debt, commitments and contingencies. Debt Commitments And Contingencies [Table] Debt Commitments And Contingencies [Table] Recorded Unconditional Purchase Obligation by Category of Item Purchased Recorded Unconditional Purchase Obligation By Category Of Item Purchased [Axis] Unconditional Purchase Obligation, Category of Goods or Services Acquired Unconditional Purchase Obligation Category Of Goods Or Services Acquired [Domain] Reagents and other supplies. Reagents and Other Supplies Reagents And Other Supplies [Member] Debt, Commitments and Contingencies [Line Items] Debt Commitments And Contingencies [Line Items] Debt security investment outstanding borrowing amount Debt Security Investment Outstanding Borrowing Amount Interest on loan withdrawn from margin account Debt Instrument Interest Rate At Beginning Of Period Payments for closing of escrow, financed under margin loan Payments For Closing Of Escrow Financed Under Margin Loan Interest rate Debt Instrument Interest Rate At End Of Period Margin account, outstanding amount Interest expense Interest Expense Non-cancelable purchase obligations Purchase Obligation Non-cancelable purchase obligations, payable within twelve months Recorded Unconditional Purchase Obligation Due In Next Rolling Twelve Months Non-cancelable purchase obligations, payable within next twenty-four months Recorded Unconditional Purchase Obligation Due In Rolling Year Two Operating leases term of expiration. Lessee Lease Description [Table] Lessee Lease Description [Table] Lease Contractual Term Lease Contractual Term [Axis] Lease Contractual Term Lease Contractual Term [Domain] One operating lease. One Operating Lease One Operating Lease [Member] Lessee Lease Description [Line Items] Lessee Lease Description [Line Items] Operating leases term of expiration Operating Leases Term Of Expiration Operating leases, renewal term Lessee Operating Lease Renewal Term Number of operating leases entered. Lessee operating lease extended lease term. Lessee operating lease extended lease term expiration date. Number of operating leases entered Number Of Operating Leases Entered Long-term lease ROU assets Operating Lease Right Of Use Asset Short-term lease liabilities Operating Lease Liability Current Long-term lease liabilities Operating Lease Liability Noncurrent Lessee operating lease extended lease term Lessee Operating Lease Extended Lease Term Lessee operating lease extended lease term expiration date Lessee Operating Lease Extended Lease Term Expiration Date Operating lease right-of-use asset Operating lease, right-of-use asset, statement of financial position [Extensible List] Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List Operating lease liabilities, short term Operating lease, liability, current, statement of financial position [Extensible List] Operating Lease Liability Current Statement Of Financial Position Extensible List Operating lease liabilities, long term Operating lease, liability, noncurrent, statement of financial position [Extensible List] Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List Operating lease cost Operating Lease Cost Short-term lease cost Short Term Lease Cost Total lease cost Lease Cost Weighted average remaining lease term - operating leases Operating Lease Weighted Average Remaining Lease Term1 Weighted average discount rate - operating leases Operating Lease Weighted Average Discount Rate Percent 2021 (remaining 9 months) Lessee Operating Lease Liability Payments Remainder Of Fiscal Year 2022 Lessee Operating Lease Liability Payments Due Next Twelve Months 2023 Lessee Operating Lease Liability Payments Due Year Two 2024 Lessee Operating Lease Liability Payments Due Year Three 2025 Lessee Operating Lease Liability Payments Due Year Four 2026 Lessee Operating Lease Liability Payments Due Year Five Thereafter Lessee Operating Lease Liability Payments Due After Year Five Total lease payments Lessee Operating Lease Liability Payments Due Less imputed interest Lessee Operating Lease Liability Undiscounted Excess Amount Total Operating Lease Liability Lessor, operating lease, remaining term of contract including renewal options. Remaining terms including renewal options Lessor Operating Lease Remaining Term Of Contract Including Renewal Options Lease income Operating Lease Lease Income Lease income Operating Lease Lease Income Lease Payments Variable lease income Operating Lease Variable Lease Income Total lease income 2021 (remaining 9 months) Lessor Operating Lease Payments To Be Received Remainder Of Fiscal Year 2022 Lessor Operating Lease Payments To Be Received Next Twelve Months 2023 Lessor Operating Lease Payments To Be Received Two Years 2024 Lessor Operating Lease Payments To Be Received Three Years Total Lessor Operating Lease Payments To Be Received Share Based Compensation [Abstract] Share based compensation allocation of recognized period costs. Share based compensation allocation of recognized period costs. Share Based Compensation Allocation Of Recognized Period Costs [Table] Share Based Compensation Allocation Of Recognized Period Costs [Table] Income Statement Location Income Statement Location [Axis] Income Statement Location Income Statement Location [Domain] Cost of Revenue Cost Of Sales [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] Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Equity-based compensation expense Allocated Share Based Compensation Expense Effective income tax rate Effective Income Tax Rate Continuing Operations Weighted-average common shares—outstanding, basic Weighted-average common shares—outstanding, diluted Net income (loss) per common share, basic Net income (loss) per common share, diluted Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Award Type Award Type [Axis] Award Type Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Options Employee Stock Option [Member] Restricted Stock Units (RSUs) Restricted Stock Units R S U [Member] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Anti-dilutive securities excluded from calculation of diluted income (loss) per share Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Schedule Of Related Party Transactions By Related Party [Table] Schedule Of Related Party Transactions By Related Party [Table] Related Party Related Party Transactions By Related Party [Axis] Related Party Related Party [Domain] AHMC healthcare Inc. AHMC Healthcare Inc. A H M C Healthcare Inc [Member] Related Party Transaction Related Party Transaction [Axis] Related Party Transaction Related Party Transaction [Domain] Genetic sequencing service. Genetic Sequencing Services Genetic Sequencing Service [Member] Beneficial Ownership Beneficial Owner [Member] FF Gene Biotech Member. FF Gene Biotech F F Gene Biotech [Member] Title of Individual Title Of Individual [Axis] Title of Individual Title Of Individual With Relationship To Entity [Domain] Chief Scientific Executive Officer Member. Dr. Han Lin Gao Chief Scientific Executive Officer [Member] Legal Entity Legal Entity [Axis] Entity Entity [Domain] Fuzhou Jinqiang Investment Partnership LP Member. FJIP Fuzhou Jinqiang Investment Partnership L P [Member] Ownership Ownership [Axis] Ownership Ownership [Domain] Xilong Scientific Member. Xilong Scientific Xilong Scientific [Member] XiLong USA. XiLong USA Xi Long U S A [Member] Fulgent Pharma Limited Liability Company. Fulgent Pharma LLC Fulgent Pharma Limited Liability Company [Member] Research development service. Research Development Service Research Development Service [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Revenue from related parties Revenue From Related Parties Trade accounts receivable, net from related parties Accounts Receivable Related Parties Ownership percentage of common stock outstanding shares Minority Interest Ownership Percentage By Parent Ownership percentage Equity Method Investment Ownership Percentage Expenses to transport employees and supplies Related Party Transaction Expenses From Transactions With Related Party Related party costs Related Party Costs Due to related parties Due To Related Parties Current Contributions to be made in joint venture. Contribution period in joint venture. Contributions made to joint venture. Contributions remain for joint venture. Schedule Of Equity Method Investments [Table] Schedule Of Equity Method Investments [Table] Investment, Name Schedule Of Equity Method Investment Equity Method Investee Name [Axis] Investment, Name Equity Method Investee Name [Domain] Equipment Equipment [Member] Boston Molecules, Inc. Boston Molecules, Inc. Boston Molecules Inc [Member] Class of Stock Statement Class Of Stock [Axis] Class of Stock Class Of Stock [Domain] Series A Preferred Stock Series A Preferred Stock [Member] Schedule Of Equity Method Investments [Line Items] Schedule Of Equity Method Investments [Line Items] Contribution to be made in joint venture Contributions To Be Made In Joint Venture Contribution period in joint venture Contribution Period In Joint Venture Ownership interest to be made in joint venture Contributions remain for joint venture Contributions Remain For Joint Venture Contributions made to joint venture Contributions Made To Joint Venture Equity method investments Equity Method Investments Number of shares purchased Sale Of Stock Number Of Shares Issued In Transaction Purchase price per share Business Acquisition Share Price Payments to aggregate purchase price Payments To Acquire Businesses Gross Equity offering price. Percentage of commission to be paid from gross proceeds. Sale of stock, weighted average net selling price per share. Equity distribution agreements. Equity distribution agreements. Equity Distribution Agreements [Table] Equity Distribution Agreements [Table] Equity Distribution Agreements [Line Items] Equity Distribution Agreements [Line Items] Aggregate offering price Equity Offering Price Percentage of commission to be paid from gross proceeds Percentage Of Commission To Be Paid From Gross Proceeds Sale of stock, weighted average net selling price per share Sale Of Stock Weighted Average Net Selling Price Per Share