Document Transition Report Document Transition Report Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Options Outstanding, Weighted-Average Remaining Contractual Life Money Market Funds [Member] Money Market Funds Geographical [Axis] Geographical Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Vesting period on an annual basis Debt Securities, Available-for-Sale Fair Value Debt Securities, Available-for-sale, Total Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets, Total Unvested RSUs Restricted Stock Units (RSUs) [Member] Restricted stock units Fair Value, Inputs, Level 1 [Member] Quoted Priced in Active Markets (Level 1) Level 1 Fair Value Disclosures [Text Block] Financial Instruments and Fair Value Measurements Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Unrecognized compensation cost Operating lease renewal month and year Lessee Operating Lease Renewal Month And Year Lessee operating lease renewal month and year. Interest Income (Expense), Net Interest income, net Interest Income (Expense), Net, Total Stock-based Compensation Expense Related to Options Granted and Common Stock Issued under 2020 ESPP Recorded and Allocated Share-Based Payment Arrangement, Cost by Plan [Table Text Block] ESPP Employee Stock Purchase Plan [Member] Employee stock purchase plan. Employee stock purchase plan Operating lease liabilities, noncurrent Operating Lease, Liability, Noncurrent Operating lease liabilities, non-current Related Party Transactions [Abstract] Share-based compensation arrangement by share-based payment award, number of shares available for grant, forfeitures in period. Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Forfeitures In Period Shares Available for Grant, Options forfeited / cancelled Assets, Current Total current assets Liabilities and Equity Total liabilities and stockholders’ equity 2024 Lessee operating lease liability payments, net of reimbursements, due next twelve months. Lessee Operating Lease Liability Payments Net Of Reimbursements Due Next Twelve Months Entity Address, State or Province Entity Address, State or Province Share based compensation arrangement by share based payment award, number of shares available for grant, exercised in period. Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Exercised In Period Shares Available for Grant, Options exercised Issuance of common stock, net of issuance costs Stock Issued During Period, Value, New Issues Options Outstanding, Number of Options Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Options Outstanding, Number of Options Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive loss Trading Symbol Trading Symbol Schedule of lease amount reported in balance sheet. Schedule Of Lease Amount Reported In Balance Sheet Table [Text Block] Schedule of Amounts Reported in Consolidated Balance Sheets for Leases Common Stock, Shares, Issued Common stock, shares issued Common Stock, Shares, Issued, Total Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations [Abstract] Cash, cash equivalents, and restricted cash Cranbury, New Jersey. Cranbury New Jersey [Member] Cranbury, New Jersey 2027 Lessee operating lease liability payments, net of reimbursements, due year four. Lessee Operating Lease Liability Payments Net Of Reimbursements Due Year Four Shares, Outstanding Balance, Shares Balance, Shares Common Stock, Capital Shares Reserved for Future Issuance Number of shares reserved for issuance AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Loss 2026 Lessee operating lease liability payments, net of reimbursements, due year three. Lessee Operating Lease Liability Payments Net Of Reimbursements Due Year Three Entity Address, City or Town Entity Address, City or Town Related Party Transaction [Line Items] Related Party Transaction [Line Items] Operating Lease, Weighted Average Discount Rate, Percent Weighted-average discount rate Lessee, Operating Lease, Renewal Term Operating lease, renewal term Property, Plant and Equipment [Table Text Block] Summary of Property and Equipment, Net Subsequent Event Member Subsequent Event [Member] Subsequent Event Type [Axis] Additional Paid-in Capital [Member] Additional Paid-in Capital Share-based compensation arrangement by share-based payment award, number of shares available for grant, shares reserved for issuance. Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Shares Reserved For Issuance Shares Available for Grant, Shares reserved for issuance Liabilities, Current [Abstract] Current liabilities: Assets, Current [Abstract] Current assets: Preferred Stock, Par or Stated Value Per Share Preferred stock, par value Sharebased compensation arrangement by sharebased payment award options exercised weighted average remaining contractual term. Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercised Weighted Average Remaining Contractual Term Options Forfeited/Cancelled, Weighted-Average Remaining Contractual Life Statement of Stockholders' Equity [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Vested and expected to vest, Weighted Average Exercise Price Operating Lease, Liability, Current Operating lease liability, current Operating lease liabilities, current Property, Plant and Equipment, Net Property and equipment, net Property and equipment, net Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net, Ending Balance Class of Stock [Domain] Entity Central Index Key Entity Central Index Key Plan Name [Domain] Plan Name Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms Weighted average remaining vesting period Assets, Fair Value Disclosure Total financial assets Assets, Fair Value Disclosure, Total Preferred Stock, Shares Outstanding Preferred stock, shares outstanding Preferred Stock, Shares Outstanding, Beginning Balance Preferred Stock, Shares Outstanding, Ending Balance Operating lease expiration period. Operating Lease Expiration Period Operating lease expiration period Share based compensation arrangement by share based payment award options weighted-average remaining life. Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Remaining Life [Abstract] Weighted-Average Remaining Contractual Life Liabilities, Current Total current liabilities Entity Tax Identification Number Entity Tax Identification Number Loss before (benefit) provision for income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Increase (Decrease) in Operating Capital [Abstract] Change in operating assets and liabilities: Financial Instruments [Domain] Financial Instruments Award Type Award Type [Axis] Plan Name [Axis] Plan Name Number of noncancelable operating leases. Number Of Noncancelable Operating Leases Number of noncancelable operating leases Geographical [Domain] Geographical Share based compensation arrangement by share based payment award employees exercised their right to purchase shares. Share Based Compensation Arrangement By Share Based Payment Award Employees Exercised Their Right To Purchase Shares Employees exercised their right to purchase shares Assets Total assets Two thousand twenty employee stock purchase plan. Two Thousand Twenty Employee Stock Purchase Plan [Member] 2020 ESPP Right-of-use assets, operating leases Right-of-use assets Operating Lease, Right-of-Use Asset Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount Total compensation cost related to nonvested awards not yet recognized Entity Registrant Name Entity Registrant Name Related Party, Type [Domain] Related Party Retained Earnings (Accumulated Deficit) Accumulated deficit Accumulated deficit Retained Earnings (Accumulated Deficit), Total Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Ending Balance Lessee operating lease liability payments, net of repayments, due. Lessee Operating Lease Liability Payments Net Of Repayments Due Total minimum lease payments Supplemental Cash Flow Information [Abstract] Supplemental disclosures of cash flow information Schedule of RSU Activity Under the 2020 Plan Nonvested Restricted Stock Shares Activity [Table Text Block] Schedule of RSU Activity Under the 2020 Plan Retained Earnings [Member] Accumulated Deficit Class of Stock [Axis] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Number of Stock Units, Beginning balance Number of Stock Units, Ending balance Minimum [Member] Minimum Temporary equity stock based compensation expense. Temporary Equity Stock Based Compensation Expense Stock-based compensation expense Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Operating Lease, Liability Total operating lease liabilities Present value of lease liabilities US Government Agencies Debt Securities [Member] Government Securities Government Debt Securities Concentration of credit risk and other risks and uncertainties. Concentration Of Credit Risk And Other Risks And Uncertainties Policy [Text Block] Concentration of Credit Risk and Other Risks and Uncertainties Equity Component [Domain] Equity Component Employee Stock Option [Member] Stock options Initial base rent per square foot. Initial Base Rent Per Square Foot Initial base rent per square foot Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Weighted Average Exercise Price Entity Current Reporting Status Entity Current Reporting Status Common Stock, Shares Authorized Common stock, shares authorized Research and Development Expense Research and development Research and Development Expense, Total South Brunswick, New Jersey South Brunswick, New Jersey. South Brunswick New Jersey [Member] Assets [Abstract] Assets Issuance of common stock, net of issuance costs Total proceeds net of fees Proceeds from Issuance of Common Stock Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Shares Available for Grant, Balance Shares Available for Grant, Balance Subsidiary, Sale of Stock [Line Items] Convertible Preferred Stock [Member] Convertible Preferred Stock Common stock, $0.00001 par value, 1,000,000,000 shares authorized; 46,143,536 and 45,771,332 shares issued and outstanding at June 30, 2023 and December 31, 2022, respectively. Common Stock, Value, Issued Common Stock, Value, Issued, Total Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Ending Balance Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Accrued Expenses Other, net Other Other Noncash Income (Expense) Other Noncash Income (Expense), Total Furniture and Fixtures [Member] Furniture & Fixtures Accrued Liabilities, Current Accrued expenses Total Deferred Rent Credit Remaining rent incentives Current Fiscal Year End Date Current Fiscal Year End Date Share-Based Payment Arrangement, Noncash Expense Share-based Payment Arrangement, Noncash Expense, Total Stock-based compensation expense Operating Income (Loss) Loss from operations Schedule of other information related to leases. Schedule Of Other Information Related To Leases Table [Text Block] Summary of Other Information Related to Leases (Benefit) provision for income taxes Income Tax Expense (Benefit) Income Tax Expense (Benefit), Total Research and Development Expense [Member] Research and Development Cash Cash Cash, Beginning Balance Cash, Ending Balance Lessee, Leases [Policy Text Block] Leases Share based compensation arrangement by share based payment award number of shares available for grant restricted stock units grants in period. Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Restricted Stock Units Grants in Period Shares Available for Grant, RSU's granted Share-Based Payment Arrangement, Expense Total stock-based compensation Compensation expense MOROCCO Lexington, Massachusetts Share-based compensation arrangement by share-based payment award, annual increase of authorized shares, percent of common stock outstanding. Share Based Compensation Arrangement By Share Based Payment Award Annual Increase Of Authorized Shares Percent Of Common Stock Outstanding Percentage of number of shares of common stock outstanding increase Operating Leases: Assets and Liabilities, Lessee [Abstract] Lessee operating lease liability to be paid, net of repayments, after year four. Lessee Operating Lease Liability To Be Paid Net Of Repayments After Year Four Thereafter Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Options Outstanding, Aggregate Intrinsic Value Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Other Nonoperating Income (Expense) Total other income (expense) Operating Expenses [Abstract] Operating expenses: Property, Plant and Equipment [Abstract] Temporary equity exercise of stock options and common stock value issued under employee stock purchase plans. Temporary Equity Exercise Of Stock Options And Common Stock Value Issued Under Employee Stock Purchase Plans Exercise of stock options and common stock issued under the 2020 ESPP Commitments and Contingencies Disclosure [Abstract] Other Assets, Noncurrent Other assets Other Assets, Noncurrent, Total Sublease with tenant office space starting period. Sublease With Tenant Office Space Starting Period Sublease with tenant office space starting period Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Options granted, Number of Options Options awarded Other Accrued Liabilities, Current Other accrued liabilities Equity [Text Block] Stockholders' Equity Depreciation Depreciation Depreciation, Total Board of directors. Board Of Directors [Member] Board of Directors Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Gains 2025 Lessee operating lease liability payments, net of reimbursements, due year two. Lessee Operating Lease Liability Payments Net Of Reimbursements Due Year Two Equity, Attributable to Parent [Abstract] Stockholders’ equity: 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] Lease, Cost [Table Text Block] Summary of Components of Lease Cost Earnings Per Share [Abstract] Unrealized (loss) gain on available for sale investments, net of tax OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax, Total Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Schedule of Minimum Lease Payments, Net of Reimbursements, under Operating Leases Dividends, Common Stock Dividends, common stock declared Dividends, Common Stock, Total Accounting Policies [Abstract] Assets not placed in service. Assets Not Placed In Service [Member] Assets Not Placed in Service Commitments and contingencies disclosure. Commitments And Contingencies Disclosure [Line Items] Commitments And Contingencies Disclosure [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Earnings Per Share, Basic, Total Earnings Per Share, Basic Net loss per share - basic Cash Equivalents, at Carrying Value Cash equivalents Cash Equivalents, at Carrying Value, Total Common stock, capital shares reserved for future issuance, additional shares reserved, minimum. Common Stock Capital Shares Reserved For Future Issuance Additional Shares Reserved Minimum Number of additional shares reserved for issuance, minimum Income Statement [Abstract] Property, Plant and Equipment Disclosure [Text Block] Property and Equipment, Net Payments for (Proceeds from) Tenant Allowance Tenant improvement allowance Related Party, Type [Axis] Related Party Operating Lease, Cost Operating lease cost Non-cash lease (income) expense Other Non Cash Lease Income Expense Other non cash lease (income) expense. Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Vested and expected to vest, Number of Options Statistical Measurement [Domain] Statistical Measurement Net Cash Provided by (Used in) Operating Activities Net cash used in operating activities Cash used in operating activities All Award Types All Award Types Document Period End Date Document Period End Date Statistical Measurement [Axis] Statistical Measurement Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Operating Lease, Payments Operating lease, payments Earnings Per Share, Diluted, Total Earnings Per Share, Diluted Net loss per share - diluted Cash, cash equivalents and marketable securities. Cash Cash Equivalents And Marketable Securities Policy [Text Block] Cash, Cash Equivalents and Marketable Securities Sublease income Sublease and Additional Sublease Income Sublease and additional sublease income. Debt Securities, Available-for-Sale, Unrealized Gain (Loss) Debt Securities, Available-for-sale, Unrealized Gain (Loss), Total Accretion (amortization) of available-for-sale debt securities Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Exercisable, Number of Options Aggregate gross sales proceeds Aggregate Gross Sales Proceeds Under Sales Agreement Aggregate gross sales proceeds under sales agreement. Additional Paid in Capital, Common Stock Additional paid-in capital Additional Paid in Capital, Common Stock, Beginning Balance Additional Paid in Capital, Common Stock, Ending Balance Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Number of Options Cash, Cash Equivalents, and Short-Term Investments Cash, cash equivalents, and marketable securities Cash, Cash Equivalents, and Short-term Investments, Total Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Exercise of stock options, Shares Options exercised, Number of Options Liabilities and Equity [Abstract] Liabilities and Stockholders’ Equity Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Interactive Data Current Entity Interactive Data Current Increase (Decrease) in Accounts Payable Accounts payable Increase (Decrease) in Accounts Payable, Total Equity [Abstract] Lessee, Operating Lease, Liability, Undiscounted Excess Amount Less: Amounts representing imputed interest Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Number of Stock Units, Granted Restricted stock units granted to employees Debt Securities, Available-for-Sale, Allowance for Credit Loss Allowance for credit losses Debt Securities, Available-for-sale, Allowance for Credit Loss, Total Debt Securities, Available-for-sale, Allowance for Credit Loss, Beginning Balance Debt Securities, Available-for-sale, Allowance for Credit Loss, Ending Balance Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Options exercised, Weighted Average Exercise Price Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Equity Components [Axis] Accumulated Other Comprehensive Loss Local Phone Number Local Phone Number Property, Plant and Equipment [Line Items] Property Plant And Equipment [Line Items] Sale of Stock [Axis] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Exercisable, Weighted Average Exercise Price Restricted Cash, Current Restricted cash Statement of Cash Flows [Abstract] Comprehensive Income, Policy [Policy Text Block] Comprehensive Loss Organization, Consolidation and Presentation of Financial Statements [Abstract] Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Common Stock, Par or Stated Value Per Share Common stock, par value Share-based compensation arrangement by share-based payment award, number of shares available for grant, grants in period. Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Grants In Period Shares Available for Grant, Options granted Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Unrecognized compensation cost, weighted average period of recognition Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Vested and expected to vest, Weighted-Average Remaining Contractual Life 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 [Member] Maximum Temporary Equity, Shares Outstanding Balance, Shares Balance, Shares Balance, Shares Expected shares to be purchased under 2020 ESPP Expected Shares to be Purchased under Two Thousand Twenty ESPP [Member] Expected shares to be purchased under two thousand twenty ESPP. Fair Value, Inputs, Level 3 [Member] Significant Unobservable Inputs (Level 3) Level 3 APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Stock-based compensation expense APIC, Share-based Payment Arrangement, Increase for Cost Recognition, Total Fair Value, Recurring and Nonrecurring [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Net decrease in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Payables and Accruals [Abstract] General and Administrative Expense [Member] General and Administrative Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period Options forfeited / cancelled, Number of Options Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of Common Stock Equivalents Excluded from Calculation of Diluted Net Loss per Share City Area Code City Area Code Net Cash Provided by (Used in) Operating Activities [Abstract] Cash flows from operating activities: Operating lease maintenance expense per square foot. Operating Lease Maintenance Expense Per Square Foot Operating lease maintenance expense per square foot Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Less: Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance General and Administrative Expense General and administrative General and Administrative Expense, Total Weighted Average Number of Shares Outstanding, Basic, Total Weighted Average Number of Shares Outstanding, Basic Weighted-average common shares outstanding - basic Weighted-average number of shares - basic Net Cash Provided by (Used in) Financing Activities [Abstract] Cash flows from financing activities: Lessee, Operating Lease, Description Operating lease, description Statement [Table] Statement [Table] Share-Based Payment Arrangement, Option, Activity [Table Text Block] Schedule of Stock Options Activity Exercise of stock options and common stock issued under employee stock purchase plans. Exercise Of Stock Options And Common Stock Issued Under Employee Stock Purchase Plans Exercise of stock options and common stock issued under the 2020 ESPP, Shares Schedule of Related Party Transactions, by Related Party [Table] Schedule Of Related Party Transactions By Related Party [Table] Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of Estimated Fair Value of Stock Options Document Fiscal Period Focus Document Fiscal Period Focus Lease incentives used for leasehold improvements Lease Incentives Used For Leasehold Improvements Lease incentives used for leasehold improvements. Related Party Transactions Disclosure [Text Block] Related Parties Accrued Professional Fees, Current Accrued legal and professional services Statement [Line Items] Statement [Line Items] Exercise of stock options and common stock value issued under employee stock purchase plans and vesting of restricted stock units. Exercise Of Stock Options And Common Stock Value Issued Under Employee Stock Purchase Plans And Vesting Of Restricted Stock Units Exercise of stock options and common stock issued under the 2020 ESPP and vesting of restricted stock units Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive securities Machinery and Equipment [Member] Machinery & Equipment Lease, Cost Total lease cost Asset Class [Domain] Asset Class Commitments and contingencies disclosure. Commitments And Contingencies Disclosure [Table] Commitments And Contingencies Disclosure [Table] Common Stock [Member] Common Stock Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net loss to net cash used in operating activities: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value, Total Cash and Cash Equivalents, at Carrying Value, Beginning Balance Cash and Cash Equivalents, at Carrying Value, Ending Balance Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Schedule of Stock-based Compensation Expense by Award Type Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Exercisable, Aggregate Intrinsic Value (Accretion) amortization of premiums on marketable securities Accretion (Amortization) of Discounts and Premiums, Investments Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Antidilutive Securities, Name [Domain] Entity Bankruptcy Proceedings, Reporting Current Entity Bankruptcy Proceedings, Reporting Current Accrued research and development costs current. Accrued Research And Development Costs Current Accrued research and development costs Exercise of stock options and common stock issued under employee stock purchase plans and vesting of restricted stock units. Exercise Of Stock Options And Common Stock Issued Under Employee Stock Purchase Plans And Vesting Of Restricted Stock Units Exercise of stock options and common stock issued under the 2020 ESPP and vesting of restricted stock units, Shares Cover [Abstract] Allowance on behalf of lessor for construction of office space. Allowance On Behalf Of Lessor For Construction Of Office Space Allowance on behalf of lessor for construction of office space. Document Fiscal Year Focus Document Fiscal Year Focus Income Taxes Paid, Net Cash paid for income taxes Income Taxes Paid, Net, Total Sale of Stock [Domain] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted-Average Grant Date Fair Value, Granted Proceeds from the exercise of stock options and common stock issued under the 2020 ESPP Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Including Option Exercised Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised, Total Security Exchange Name Security Exchange Name Preferred Stock, Shares Issued Preferred stock, shares issued Preferred Stock, Shares Issued, Total Preferred Stock, Shares Authorized Preferred stock, shares authorized Operating leases, extended year. Operating Leases Extended Year Operating Leases, extended year Consulting fees Operating Costs and Expenses Operating Costs and Expenses, Total Property, Plant and Equipment, Gross Total property and equipment Property, Plant and Equipment, Gross, Total Property, Plant and Equipment, Gross, Beginning Balance Property, Plant and Equipment, Gross, Ending Balance Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block] Summary of Cash Equivalents and Available-for-sale Securities Carrying Amounts and Fair Values Share-based compensation arrangement by share-based payment award, shares outstanding, number. Share Based Compensation Arrangement By Share Based Payment Award Shares Outstanding Number Shares outstanding Other income (expense), net Other nonoperating income (expense), other. Other Nonoperating Income Expense Other Leased assets obtained in exchange for new or modified operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Options forfeited / cancelled, Weighted Average Exercise Price Financial Instrument [Axis] Financial Instrument Stock Issued During Period, Value, Stock Options Exercised Exercise of stock options Entity Emerging Growth Company Entity Emerging Growth Company Amendment Flag Amendment Flag Schedule of Accrued Liabilities [Table Text Block] Summary of Accrued Expenses Marketable securities, current Marketable Securities, Current Marketable Securities, Current, Total Sublease with tenant office space ending period. Sublease With Tenant Office Space Ending Period Sublease with tenant office space ending period Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Gross Unrealized Losses Operating leases extended month and year. Operating Leases Extended Month And Year Operating leases extended month and year Common stock, capital shares reserved for future issuance, additional shares reserved, maximum. Common Stock Capital Shares Reserved For Future Issuance Additional Shares Reserved Maximum Number of additional shares reserved for issuance, maximum Basis of Accounting, Policy [Policy Text Block] Basis of Presentation Gross proceeds available for future issuances of common stock Common Stock Available For Future Issuance Common stock available for future issuance. Leases [Abstract] Net cash paid (received) for amounts included in the measurement of lease liabilities Net Cash Paid (Received) For Amounts Included In The Measurement Of Lease Liabilities Net cash paid (received) for amounts included in the measurement of lease liabilities. Securities Act File Number Entity File Number Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value Vested and expected to vest, Aggregate Intrinsic Value Amount owed to related party Other Liabilities Other Liabilities, Total OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Unrealized gain (loss) on available for sale investments Reimbursements received from lessee. Reimbursements Received From Lessee Reimbursements received Share-Based Payment Arrangement [Abstract] Accounts Payable, Current Accounts payable Accounts Payable, Current, Total Weighted-Average Grant Date Fair Value, Beginning balance Weighted-Average Grant Date Fair Value, Beginning balance Weighted-Average Grant Date Fair Value, Ending balance Two thousand twenty equity incentive plan. Two Thousand Twenty Equity Incentive Plan [Member] 2020 Plan Operating Expenses Total operating expenses Exercise of stock options and common stock value issued under employee stock purchase plans. Exercise Of Stock Options And Common Stock Value Issued Under Employee Stock Purchase Plans Exercise of stock options and common stock issued under the 2020 ESPP Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Expected life (in years) Entity Address, Address Line Two Entity Address, Address Line Two Preferred stock, $0.00001 par value, 5,000,000 shares authorized at June 30, 2023 and December 31, 2022. No shares issued or outstanding at June 30, 2023 and December 31, 2022. Preferred Stock, Value, Issued Preferred Stock, Value, Issued, Total Preferred Stock, Value, Issued, Beginning Balance Preferred Stock, Value, Issued, Ending Balance Entity Small Business Entity Small Business Entity Shell Company Entity Shell Company Computer Equipment [Member] Computers Earnings Per Share [Text Block] Net Loss per Share Entity Address, Address Line One Entity Address, Address Line One Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Antidilutive Securities [Axis] Restricted Cash Restricted cash Restricted Cash, Total Subsequent Event Type [Domain] Options to purchase common stock. Options to Purchase Common Stock [Member] Options to purchase common stock Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum Risk-free interest rate, minimum Income Statement Location [Axis] Income Statement Location Variable Lease, Cost Variable lease cost Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum Risk-free interest rate, maximum Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Dividend yield Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total Increase (decrease) in operating lease right-of-use assets and liabilities. Increase Decrease In Operating Lease Right Of Use Assets And Liabilities Operating lease right-of-use assets and liabilities Fair Value, Inputs, Level 2 [Member] Significant Other Observable Inputs (Level 2) Level 2 Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period Shares issued Princeton, New Jersey. Princeton New Jersey [Member] Princeton, New Jersey Title of 12(b) Security Title of 12(b) Security Temporary Equity, Carrying Amount, Attributable to Parent Balance Balance Balance Number of consulting agreements members. Number Of Consulting Agreements Members Number of consulting agreement members Other Nonoperating Income (Expense) [Abstract] Other income (expense): Leaseholds and Leasehold Improvements [Member] Leasehold Improvements Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows from investing activities: Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset Share based compensation arrangement by share based payment award options shares available for grant. Share Based Compensation Arrangement By Share Based Payment Award Options Shares Available For Grant Roll Forward Shares Available For Grant Operating lease, existence of option to terminate [true false] Lessee, Operating Lease, Existence of Option to Terminate [true false] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Exercisable, Weighted-Average Remaining Contractual Life Common Stock, Shares, Outstanding Common stock, shares outstanding Common Stock, Shares, Outstanding, Beginning Balance Common Stock, Shares, Outstanding, Ending Balance Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Risk-free interest rate Share-Based Payment Arrangement [Text Block] Stock Plan Operating Leases, extension period Operating Leases Extension Period Operating leases, extension period Income Statement Location [Domain] Income Statement Location Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Options granted, Weighted Average Exercise Price Document Type Document Type Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Document Quarterly Report Document Quarterly Report Marketable securities, noncurrent Marketable Securities, Noncurrent Marketable Securities, Noncurrent, Total Marketable Securities Marketable Securities, Total Operating lease, option to terminate Lessee, Operating Lease, Option to Terminate Net Cash Provided by (Used in) Financing Activities Net cash provided by financing activities Entity Filer Category Entity Filer Category Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Supplemental disclosures of noncash investing activities Increase (Decrease) in Accrued Liabilities Accrued expenses Increase (Decrease) in Accrued Liabilities, Total Workers' Compensation Liability, Current Accrued compensation Payments to Acquire Marketable Securities Payments to Acquire Marketable Securities, Total Purchases of marketable securities ATM Program At The Market Equity Offering Program [Member] At the market equity offering program. Asset Class [Axis] Asset Class Liabilities Total liabilities Property, Plant and Equipment [Table] Schedule Of Property Plant And Equipment [Table] 2023 Lessee operating lease liability payments, net of reimbursements, remainder of fiscal year. Lessee Operating Lease Liability Payments Net Of Reimbursements Remainder Of Fiscal Year Temporary equity stock based compensation expense shares. Temporary Equity Stock Based Compensation Expense Shares Stock-based compensation expense, Shares Equity, Attributable to Parent Balance Balance Total stockholders’ equity Net Income (Loss) Net loss Net loss Net loss Business Description and Basis of Presentation [Text Block] Formation and Business of the Company Cash and Cash Equivalents [Domain] Cash and Cash Equivalents Area of Land Lease area of square feet Corporate Debt Securities [Member] Corporate Securities Corporate Debt Securities Statement of Financial Position [Abstract] Area of Real Estate Property Area of operating lease property Weighted Average Number of Shares Outstanding, Diluted, Total Weighted Average Number of Shares Outstanding, Diluted Weighted-average common shares outstanding - diluted Weighted-average number of shares - diluted Temporary equity exercise of stock options and common stock issued under employee stock purchase plans. Temporary Equity Exercise Of Stock Options And Common Stock Issued Under Employee Stock Purchase Plans Exercise of stock options and common stock issued under the 2020 ESPP, Shares Weighted average price per share Shares Issued, Price Per Share Share based compensation arrangement by share based payment award options intrinsic value. Share Based Compensation Arrangement By Share Based Payment Award Options Intrinsic Value [Abstract] Aggregate Intrinsic Value Payments to Acquire Productive Assets Accrued purchases of property and equipment Payments to Acquire Productive Assets, Total Management fee of base rent percentage. Management Fee Of Base Rent Percentage Management fee of base rent percentage Debt Securities, Available-for-Sale, Amortized Cost Carrying Amount Operating Lease, Weighted Average Remaining Lease Term Weighted-average remaining lease term (years) Use of Estimates, Policy [Policy Text Block] Use of Estimates Income Tax Disclosure [Text Block] Income Taxes Sublease expiration period. Sublease Expiration Period Sublease expiration period Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Options Outstanding, Weighted Average Exercise Price Options Outstanding, Weighted Average Exercise Price Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Computation of Net Loss per Share Initial base rent increased per square foot. Initial Base Rent Increased Per Square Foot Initial base rent increased per square foot Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Fair Value Disclosures [Abstract] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV Payments to Acquire Property, Plant, and Equipment Payments to Acquire Property, Plant, and Equipment, Total Purchases of property and equipment Common stock shares sold Issuance of common stock, net of issuance costs , Shares Stock Issued During Period, Shares, New Issues Operating Lease, Expense Rent expense Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Cash, cash equivalents, and restricted cash - end of period Cash, cash equivalents, and restricted cash - beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total Proceeds from Sale and Maturity of Marketable Securities Maturities of marketable securities Proceeds from Sale and Maturity of Marketable Securities, Total Income Tax Disclosure [Abstract]