Entity Central Index Key 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 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 Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Entity Current Reporting Status Entity Current Reporting Status Entity Shell Company Entity Shell Company 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 Entity Interactive Data Current Entity Interactive Data Current Title of 12(b) Security Security12b Title Security Exchange Name Security Exchange Name Document Quarterly Report Document Quarterly 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 Accounts Receivable Net Current Unbilled other receivable 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 Other 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 Accrued expenses and other current liabilities Accrued Liabilities And Other Liabilities Deferred revenue Deferred Revenue Current Total current liabilities Liabilities Current Other liabilities Other Liabilities Noncurrent Total liabilities Liabilities Commitments and contingencies (see Note 11) Commitments And Contingencies Stockholders’ equity: Stockholders Equity [Abstract] Preferred stock, $0.001 par value per share; 10,000,000 shares authorized; no shares issued and outstanding as of June 30, 2021 and December 31, 2020 Preferred Stock Value Common stock, $0.001 par value; 300,000,000 shares authorized as of June 30, 2021 and December 31, 2020; 82,776,937 and 82,436,937 shares issued and outstanding as of June 30, 2021 and December 31, 2020, respectively Common Stock Value Additional paid-in capital Additional Paid In Capital Accumulated deficit Retained Earnings Accumulated Deficit Total stockholders’ equity Stockholders Equity Total liabilities and stockholders’ equity Liabilities And Stockholders Equity 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 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 Income Statement [Abstract] Collaboration revenue Revenue From Contract With Customer Excluding Assessed Tax Operating expenses Operating Expenses [Abstract] Research and development Research And Development Expense General and administrative General And Administrative Expense Total operating expenses Operating Expenses Income (loss) from operations Operating Income Loss Interest income and other, net Interest And Other Income Income (loss) before income taxes Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Income tax expense Income Tax Expense Benefit Net income (loss) and comprehensive income (loss) Net Income Loss Net income (loss) per share attributable to common stockholders Earnings Per Share [Abstract] Basic Earnings Per Share Basic Diluted Earnings Per Share Diluted Weighted-average common shares outstanding Weighted Average Number Of Shares Outstanding [Abstract] Basic Weighted Average Number Of Shares Outstanding Basic Diluted Weighted Average Number Of Diluted Shares Outstanding Statement Of Stockholders Equity [Abstract] Statement [Table] Statement [Table] Class of Stock Statement Class Of Stock [Axis] Class of Stock Class Of Stock [Domain] Convertible Preferred Stock Convertible Preferred Stock [Member] 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] Statement [Line Items] Statement [Line Items] Balance Balance, shares Temporary Equity Shares Outstanding Balance Temporary Equity Carrying Amount Attributable To Parent Balance, shares Shares Outstanding Issuance of Series D convertible preferred stock, net of issuance costs of $869 Temporary Equity Stock Issued During Period Value New Issues The number of shares of new stock classified as temporary equity issued during the period. Issuance of Series D convertible preferred stock, net of issuance costs of $869, shares Temporary Equity Stock Issued During Period Shares New Issues Issuance of common stock upon exercise of stock options Stock Issued During Period Value Stock Options Exercised Issuance of common stock upon exercise of stock options, shares Stock Issued During Period Shares Stock Options Exercised Stock-based compensation expense Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Net income (loss) Balance Balance, shares Balance Balance, shares The amount of issuance costs deducted from cash proceeds received on stock transaction. Stock issuance costs Stock Issuance Costs The amount of equity issuance costs included in accounts payable and accrued expenses. Statement Of Cash Flows [Abstract] Cash flows 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 used in operating activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Stock-based compensation expense Share Based Compensation Depreciation and amortization expense Depreciation And Amortization Changes in operating assets and liabilities: Increase Decrease In Operating Capital [Abstract] Accounts receivable Increase Decrease In Accounts Receivable Prepaid expenses and other current assets Increase Decrease In Prepaid Deferred Expense And Other Assets Other assets Increase Decrease In Other Operating Assets Accounts payable Increase Decrease In Accounts Payable Accrued expenses and other liabilities Increase Decrease In Accrued Liabilities And Other Operating 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] Additions to property and equipment Payments To Acquire Property Plant And Equipment 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 convertible preferred stock, net of issuance costs Proceeds From Issuance Of Convertible Preferred Stock Proceeds from issuance of common stock for exercise of stock options Proceeds From Stock Options Exercised Payments made for initial public offering costs Payments Of Stock Issuance Costs Net cash provided by financing activities Net Cash Provided By Used In Financing Activities Net increase (decrease) in cash, cash equivalents and restricted cash Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Cash, cash equivalents and restricted cash at the beginning of period Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Cash, cash equivalents and restricted cash at the end of period Cash, cash equivalents and restricted cash at the end of period: Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents [Abstract] Restricted cash Restricted Cash Supplemental disclosure of noncash financing activities Supplemental Cash Flow Information [Abstract] Equity issuance costs included in accounts payable and accrued expenses Equity Issuance Costs Included In Accounts Payable And Accrued Expenses 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] Revenue From Contract With Customer [Abstract] Collaboration Revenue Revenue From Contract With Customer [Text Block] Fair Value Disclosures [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Payables And Accruals [Abstract] Accrued Expenses and Other Current Liabilities Accounts Payable Accrued Liabilities And Other Liabilities Disclosure Current [Text Block] The entire disclosure for common stock, including, but not limited to, the number of shares issued and outstanding, voting rights, and number of shares reserved for each class of stock. Equity [Abstract] Common Stock Common Stock [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Stock-based Compensation Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Net Income (Loss) Per Share Attributable to Common Stockholders Earnings Per Share [Text Block] Leases [Abstract] Leases Leases Of Lessee Disclosure [Text Block] Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Commitments And Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments And Contingencies Disclosure [Text Block] Compensation And Retirement Disclosure [Abstract] Benefit Plan Compensation And Employee Benefit Plans [Text Block] Related Party Transactions [Abstract] Related Party Transactions Related Party Transactions Disclosure [Text Block] Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Basis of Presentation Basis Of Accounting Policy Policy [Text Block] Use of Estimates Use Of Estimates Principles of Consolidation Consolidation Policy [Text Block] Disclosure of accounting policy for unaudited interim financial information. Unaudited Interim Financial Information Unaudited Interim Financial Information Policy [Text Block] Disclosure of accounting policy for significant accounting policies. Significant Accounting Policies Significant Accounting Policies Policy [Text Block] Leases Lessee Leases Policy [Text Block] Net Income (Loss) Per Share Attributable to Common Stockholders Earnings Per Share Policy [Text Block] Recently Adopted Accounting Pronouncements and Recently Issued Accounting Pronouncements New Accounting Pronouncements Policy Policy [Text Block] Schedule of Financial Assets Measured at Fair Value on Recurring Basis Fair Value Assets Measured On Recurring Basis [Text Block] Schedule of Accrued Expenses and Other Current Liabilities Schedule Of Accrued Liabilities Table [Text Block] Schedule of Stock-based Compensation Expense Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Text Block] Summary of Basic and Diluted Earnings Per Share Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Tabular disclosure of balance sheet information related to leases. Summary of Assets and Liabilities Recorded on Balance Sheet Supplemental Disclosure Of Balance Sheet Information Related To Leases Table [Text Block] Components of Lease Costs Lease Cost Table [Text Block] Summary of Remaining Lease Term and Discount Rate Operating Leases Of Lessee Disclosure [Text Block] Summary of Future Minimum Payments under Operating Leases Lessee Operating Lease Liability Maturity Table [Text Block] Nature of business. Nature Of Business [Abstract] Nature of business. Nature of business. Nature Of Business [Table] Nature Of Business [Table] Sale of Stock Subsidiary Sale Of Stock [Axis] Sale of Stock Sale Of Stock Name Of Transaction [Domain] IPO I P O [Member] Series A, B, C, D and D-1 convertible preferred stock. Series A, B, C, D and D-1 Convertible Preferred Stock Series A B C D And D1 Convertible Preferred Stock [Member] Nature of Business [Line Items] Nature Of Business [Line Items] Shares issued Stock Issued During Period Shares New Issues Share price Shares Issued Price Per Share Net proceeds from initial public offering ("IPO") Proceeds From Issuance Initial Public Offering Convertible preferred stock converted into shares Convertible Preferred Stock Shares Issued Upon Conversion The aggregate amount of milestone payments receivable upon achievement of certain events. The amount of upfront payment received upon entering a licensing agreement. The amount of milestone achieved during the period for development activities, as part of a license agreement. Disaggregation Of Revenue [Table] Disaggregation Of Revenue [Table] Counterparty Name Counterparty Name [Axis] Counterparty Name Repurchase Agreement Counterparty Name [Domain] Roche license agreement. Roche License Agreement Roche License Agreement [Member] Statistical Measurement Range [Axis] Statistical Measurement Range [Member] Maximum Maximum [Member] Minimum [Member] Minimum [Member] Collaborative Arrangement and Arrangement Other than Collaborative Type Of Arrangement [Axis] Collaborative Arrangement and Arrangement Other than Collaborative Arrangements And Nonarrangement Transactions [Member] Development, regulatory and commercial. Development and Regulatory Development Regulatory And Commercial [Member] Sales based. Sales Based Sales Based [Member] Reimbursable costs. Reimbursable Costs Reimbursable Costs [Member] Disaggregation Of Revenue [Line Items] Disaggregation Of Revenue [Line Items] Non-refundable upfront payment received Upfront Payment Received Milestones receivable upon achievement aggregate Milestones Receivable Upon Achievement Aggregate Development milestone achieved Development Milestone Achieved The aggregate transaction price of a collaboration agreement. Initial transaction price Collaborative Agreement Transaction Price Deferred revenue Revenue Remaining Performance Obligation The aggregate amount of costs that have been, or will be, reimbursed by the licensee. Costs reimbursed amount Costs Reimbursed Amount Net liability related to reimbursable costs Accrued expenses and other current liabilities Fair value assets measured on recurring basis. Fair Value Assets Measured On Recurring Basis [Abstract] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Disclosure of information about assets at fair value on recurring basis. Fair Value Assets Measured On Recurring Basis [Table] Fair Value Assets Measured On Recurring Basis [Table] Cash and Cash Equivalents Cash And Cash Equivalents [Axis] Cash and Cash Equivalents Restricted Cash And Cash Equivalents Cash And Cash Equivalents [Member] Money Market Funds Money Market Funds [Member] 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 Measured On Recurring Basis [Line Items] Fair Value Assets Measured On Recurring Basis [Line Items] Cash equivalents Cash And Cash Equivalents [Abstract] Total cash equivalents Cash And Cash Equivalents Fair Value Disclosure Carrying value as of the balance sheet date of obligations incurred and payable for research and development expenses. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received, and fees classified as other. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Research and development Accrued Research And Development Expense Current Professional fees and other Accrued Professional Fees And Other Current Payroll and payroll related Employee Related Liabilities Current Income taxes Accrued Income Taxes Current Total accrued expenses and other current liabilities Common stock voting rights per share Common Stock Voting Rights Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Maximum Plan Name Plan Name [Axis] Plan Name Plan Name [Domain] Two thousand twenty incentive award plan. 2020 Incentive Award Plan Two Thousand Twenty Incentive Award Plan [Member] Award Date Award Date [Axis] Award Date Award Date [Domain] Annual increase. Annual Increase Annual Increase [Member] 2013 equity incentive plan. 2013 Equity Incentive Plan Two Thousand Thirteen Equity Incentive Plan [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 shares available for grant Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized Percentage of shares of common stock Outstanding Share Based Compensation Arrangement By Share Based Payment Award Percentage Of Outstanding Stock Maximum Increased number of shares available under incentive plan Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Authorized Common stock, capital shares reserved for future issuance Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant The aggregate grant date fair value of options granted during the period. Share-based compensation arrangement by share-based payment award, options granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Share-based compensation arrangement by share-based payment award, aggregate grant date fair value Share Based Compensation Arrangement By Share Based Payment Award Options Granted In Period Aggregate Grant Date Fair Value Employee Service Share Based Compensation Aggregate Disclosures [Abstract] 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] Research and Development Expense Research And Development 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 Weighted average common shares outstanding, basic Dilutive effect of outstanding stock options Weighted Average Number Diluted Shares Outstanding Adjustment Weighted average common shares outstanding, diluted Net income (loss) per share, basic Net income (loss) per share, diluted Antidilutive Securities Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis] Antidilutive Securities, Name Antidilutive Securities Name [Domain] Stock options to purchase common stock. Stock Options to Purchase Common Stock Stock Options To Purchase Common Stock [Member] Non-vested restricted stock. Non-vested Restricted Common Stock Non Vested Restricted Stock [Member] Number of shares excluded from computation of diluted net income per share Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Right-of-use asset Operating Lease Right Of Use Asset Current lease liability Operating Lease Liability Current Non-current lease liability Operating Lease Liability Noncurrent Operating lease costs Operating Lease Cost Variable lease costs Variable Lease Cost Total lease costs Lease Cost Remaining lease term (in years) Lessee Operating Lease Remaining Lease Term Discount rate Lessee Operating Lease Discount Rate 2021 Lessee Operating Lease Liability Payments Remainder Of Fiscal Year 2022 Lessee Operating Lease Liability Payments Due Next Twelve Months Total lease payments Lessee Operating Lease Liability Payments Due Less amount representing implied interest Lessee Operating Lease Liability Undiscounted Excess Amount Total lease liability Operating Lease Liability Amount of deferred tax asset used to offset taxable income during the period. Provision for income taxes Current Income Tax Expense Benefit Deferred tax assets to offset taxable income Deferred Tax Assets To Offset Taxable Income The aggregate amount payable by the Company, as part of a consulting agreement. The payout amount is a success fee calculated as a percentage of certain product sales. Loss Contingencies [Table] Loss Contingencies [Table] 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] Business development consulting agreements. Business Development Consulting Agreements Business Development Consulting Agreements [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Success fee Consulting Agreement Success Fee Payout Defined contribution plan, employer matching contribution amount. Schedule Of Defined Benefit Plans Disclosures [Table] Schedule Of Defined Benefit Plans Disclosures [Table] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Defined contribution plan, employer matching contribution, percentage Defined Contribution Plan Employer Matching Contribution Percent Of Match Defined contribution plan, employer matching contribution, amount Defined Contribution Plan Employer Matching Contribution Amount Defined contribution plan recognized expense related to matching contributions Defined Contribution Plan Cost Recognized Defined Contribution Plan, Plan Name [Extensible List] Defined Contribution Plan Plan Name Extensible List The number of Company directors in control of a related party entity. Schedule Of Related Party Transactions By Related Party [Table] Schedule Of Related Party Transactions By Related Party [Table] Product and Service Product Or Service [Axis] Product and Service Products And Services [Domain] Consulting agreement. Consulting Agreement Consulting Agreement [Member] Balance Sheet Location Balance Sheet Location [Axis] Balance Sheet Location Balance Sheet Location [Domain] Accrued expenses and other current liabilities. Accrued Expenses and Other Current Liabilities Accrued Expenses And Other Current Liabilities [Member] Title of Individual Title Of Individual [Axis] Title of Individual Title Of Individual With Relationship To Entity [Domain] Director Director [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Number of company directors in control of related party entity Related Party Transaction Entity Controlled By Director Number Annual retainer Retainage Deposit Related party transaction expense Related Party Transaction Expenses From Transactions With Related Party Location of office space. Expected commencement date of sublease. Expected end date of sublease. The area of office space rented as part of a sublease agreement, in square feet. Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type Subsequent Event Type [Axis] Subsequent Event Type Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Area of sublease office space Area Of Sublease Office Space Location of the office space Location Of Office Space Expected commencement date of sublease Expected Commencement Date Of Sublease Expected end date of sublease Expected End Date Of Sublease Sublease monthly base rent. The amount of annual increase in sublease rent, as a percentage of rent amount. The monetary allowance granted by the landlord to a tenant to entice tenant to move into landlords building which will enable the tenant to prepare the leased premises for tenants occupancy. Sublease monthly base rent Sublease Monthly Base Rent Sublease monthly base rent, upward adjustment Sublease Monthly Base Rent Upward Adjustment Leasehold improvement allowance Lease Hold Improvement Allowance