Entity Address, City or Town Entity Address City Or Town Entity Ex Transition Period Entity Ex Transition Period Fair Value Disclosures [Abstract] Per share information: Earnings Per Share [Abstract] Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value Inputs Level1 [Member] Cash flows provided by financing activities: Net Cash Provided By Used In Financing Activities [Abstract] Amendment Flag Amendment Flag Property and equipment in accounts payable Capital Expenditures Incurred But Not Yet Paid Right-of-use asset Operating Lease Right Of Use Asset Document Quarterly Report Document Quarterly Report Marketable Securities [Line Items] Marketable Securities [Line Items] Less imputed interest Lessee Operating Lease Liability Undiscounted Excess Amount Net Loss Per Share Earnings Per Share Policy [Text Block] Cash and Cash Equivalents Restricted Cash And Cash Equivalents Cash And Cash Equivalents [Member] Statement [Table] Statement [Table] Change in accounting principle, ASU, immaterial effect Change In Accounting Principle Accounting Standards Update Immaterial Effect weighted-average grant date fair value Weighted-average grant date fair value, Unvested balance at beginning of period Weighted-average grant date fair value, Unvested balance at end of period Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value Weighted-average grant date fair value, Vested Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value Employee Stock [Member] Employee Stock Purchase Plan Employee-related Liabilities, Current, Total Compensation and related benefits Employee Related Liabilities Current Range of Exercise Prices, Minimum Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Lower Range Limit Stock Options Employee Stock Option [Member] Stock-based compensation expense (shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture, Total Stock Issued During Period Shares Share Based Compensation Total liabilities and stockholders’ equity Liabilities And Stockholders Equity Plan Name Plan Name [Domain] Change in accounting principle, ASU, adopted Change In Accounting Principle Accounting Standards Update Adopted Entity Incorporation, State or Country Code Entity Incorporation State Country Code Income Statement [Abstract] Number of lease extensions Number Of Lease Extensions Number of lease extensions. Range of Exercise Prices, Maximum Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Upper Range Limit Total current liabilities Liabilities Current 2026 Lessee Operating Lease Liability Payments Due Year Three Reimbursements for development of lab space Reimbursements For Development Of Lab Space Reimbursements for development of lab space. Recurring Basis Fair Value, Recurring [Member] Income taxes Income Tax Policy [Text Block] Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price, Ending Balance Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price, Beginning Balance Options Outstanding, Weighted Average Exercise Price Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 Entity Small Business Entity Small Business Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Ending Balance Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Beginning Balance Total cash, cash equivalents, and restricted cash shown in statement of cash flows Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Total current assets Assets Current 2023 (remaining) Lessee Operating Lease Liability Payments Remainder Of Fiscal Year Weighted Average Number of Shares Outstanding, Basic, Total Weighted average common shares outstanding, basic Weighted Average Number Of Shares Outstanding Basic City Area Code City Area Code Aggregate intrinsic value of outstanding options Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value Background Business Description And Basis Of Presentation [Text Block] Number of shares, Forfeited Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Total liabilities Liabilities Document Period End Date Document Period End Date Payment of offering costs Payments of Stock Issuance Costs Lease Contractual Term Lease Contractual Term [Domain] Restricted Stock Awards Restricted Stock Restricted Stock [Member] Weighted-average grant date fair value of options granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value Lease renewal period Lessee Operating Lease Renewal Term Marketable securities, Amortized cost Available For Sale Debt Securities Amortized Cost Basis Accrued Expenses and Other Current Liabilities Accrued Expenses And Other Current Liabilities [Text Block] Accrued expenses and other current liabilities. Vesting After One Year Share Based Compensation Award Tranche One [Member] Statistical Measurement Range [Axis] Schedule of Marketable Securities Marketable Securities [Text Block] Total assets Assets Percentage of shares outstanding used to calculate annual increase in number of shares that can be issued Percentage Of Shares Outstanding Used To Calculate Annual Increase In Number Of Shares That Can Be Issued Percentage of shares outstanding used to calculate annual increase in number of shares that can be issued. Defined contribution plan, maximum annual contributions per employee, percent Defined Contribution Plan Maximum Annual Contributions Per Employee Percent Earnings Per Share, Diluted, Total Net loss per share of common stock, diluted Earnings Per Share Diluted Schedule of Potentially Dilutive Securities Excluded from Computation of Diluted Weighted-average Shares of Common Stock Outstanding Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Text Block] Entity Address, Postal Zip Code Entity Address Postal Zip Code Document Fiscal Period Focus Document Fiscal Period Focus Restricted Cash, Total Restricted cash Restricted Cash Other Commitments [Table] Other Commitments [Table] Counterparty Name [Domain] Operating Lease, Liability, Total Current and noncurrent lease liability Operating Lease Liability Net cash (used in) provided by financing activities Net Cash Provided By Used In Financing Activities Lease Liability [Line Items] Lease Liability [Line Items] Lease liability. Short-Term Debt, Type Short Term Debt Type [Axis] Statement Of Financial Position [Abstract] Risks and Liquidity Risks And Liquidity [Text Block] Risks and liquidity. Entity File Number Entity File Number Scenario Scenario Unspecified [Domain] Statement Of Cash Flows [Abstract] Thereafter Lessee Operating Lease Liability Payments Due After Year Five Long-term prepaid expenses and other long-term assets Increase Decrease In Long-term Prepaid Expense And Other Long-term Assets Increase decrease in long-term prepaid expense and other long-term assets. Exercise Price Range Share Based Compensation Shares Authorized Under Stock Option Plans By Exercise Price Range [Axis] Statistical Measurement Range [Member] Statement Of Stockholders Equity [Abstract] Eligible employees purchase common stock percentage of lower of fair market value Sharebased Compensation Arrangement By Sharebased Payment Award Purchase Price Of Common Stock Percent Class of Stock Class Of Stock [Domain] Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Comprehensive loss Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent [Abstract] Weighted average remaining contractual term (years), Exercisable Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 Proceeds from the issuance of common stock in connection with the exercise of stock options Proceeds From Stock Options Exercised Antidilutive Securities Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis] Beneficial ownership percentage Beneficial Ownership Percentage Beneficial ownership percentage. Silicon Valley Bank Silicon Valley Bank [Member] Silicon Valley Bank Initial term of lease Initial Term Of Lease Initial term of lease. Weighted Average Number of Shares Outstanding, Diluted, Total Weighted average common shares outstanding, diluted Weighted Average Number Of Diluted Shares Outstanding Share-based payment arrangement, nonvested award, unrecognized expense Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options Corporate Debt Securities Corporate Debt Securities [Member] General and Administrative General And Administrative Expense [Member] Reimbursements for development of lab space expiration year Reimbursements For Development Of Lab Space Expiration Year Reimbursements for development of lab space expiration year. Total unrecognized compensation expense related to unvested stock option awards Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options $0.31 - $4.88 Exercise Price Range One [Member] Exercise price range one. Current Fiscal Year End Date Current Fiscal Year End Date Financial Instruments [Domain] Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total Cash, cash equivalents, and restricted cash at beginning of period Cash, cash equivalents, and restricted cash at end of period Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations Entity Address, Address Line One Entity Address Address Line1 Supplemental disclosures: Supplemental Cash Flow Information [Abstract] Marketable Securities Investments In Debt And Marketable Equity Securities And Certain Trading Assets Disclosure [Text Block] Lease Liability [Table] Lease Liability [Table] Lease liability. Vesting Vesting [Axis] Eligible employees contribution percentage Eligible Employees Contribution Percentage Eligible employees contribution percentage. Other Other Accrued Liabilities Current Payments to Acquire Property, Plant, and Equipment, Total Purchases of property and equipment Payments To Acquire Property Plant And Equipment Change in accounting principle, ASU, adoption date Change In Accounting Principle Accounting Standards Update Adoption Date Options Outstanding, Weighted Average Remaining Contractual Life (in years) Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 Fair Value Hierarchy and NAV Fair Value By Fair Value Hierarchy Level [Axis] Background [Abstract] Background. Equity [Abstract] Non-voting Common Stock Nonvoting Common Stock [Member] Weighted average exercise price per share, Forfeited Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price Loss from operations Operating Income Loss Additional paid-in capital Additional Paid In Capital Common Stock Scenario Statement Scenario [Axis] Terms of award Share Based Compensation Arrangement By Share Based Payment Award Terms Of Award Securities fair market value unrealized loss position Debt Securities, Available-for-Sale, Unrealized Loss Position Debt Securities, Available-for-Sale, Unrealized Loss Position, Total Common stock, voting rights Common Stock Voting Rights Entity Filer Category Entity Filer Category Purchases of marketable securities Payments To Acquire Marketable Securities Proceeds from maturities of marketable securities Proceeds From Sale And Maturity Of Marketable Securities Total operating expenses Operating Expenses Entity Current Reporting Status Entity Current Reporting Status Aggregate intrinsic value of exercisable options Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 Fair value measurement, assets Marketable securities, Fair value Available For Sale Securities Debt Securities Current Common Stock Stockholders Equity Note Disclosure [Text Block] Total stockholders’ equity Beginning balance Ending balance Stockholders Equity Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income [Member] Entity Tax Identification Number Entity Tax Identification Number Income Statement Location Income Statement Location [Axis] Common stock Common Stock Value Retained Earnings (Accumulated Deficit), Total Accumulated deficit Retained Earnings Accumulated Deficit Unrealized gain (loss) on marketable securities, 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 Equity Components Statement Equity Components [Axis] Other Comprehensive Income (Loss), Available-for-Sale Securities Adjustment, Net of Tax, Portion Attributable to Parent, Total Unrealized gain (loss) on marketable securities, net of tax Unrealized gain (loss) on marketable securities Unrealized loss on marketable securities Unrealized gain(loss) on marketable securities Unrealized Gain Loss On Marketable Securities Unrealized gain (loss) on marketable securities. Accounting Standards Update Type Of Adoption [Member] ASU 2016-13 Accounting Standards Update201613 [Member] Entity Emerging Growth Company Entity Emerging Growth Company Operating expenses: Operating Expenses [Abstract] Schedule Of Stock By Class [Table] Schedule Of Stock By Class [Table] Letter of Credit Letter Of Credit [Member] Expected life (in years) Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 2020 Equity Incentive Plan Two Thousand Twenty Equity Incentive Plan [Member] Two thousand twenty equity incentive plan. Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable, Ending Balance Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable, Beginning Balance Options Exercisable, Number Exercisable Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options Issuance of common stock upon exercise of stock options & vesting of RSUs Stock Issued During Period Value Stock Options Exercised and Vesting of Restricted Stock Units Stock issued during period value stock options exercised and vesting of restricted stock units. Document Transition Report Document Transition Report Fair value measurement, assets Assets, Fair Value Disclosure Assets, Fair Value Disclosure, Total Depreciation, Depletion and Amortization, Total Depreciation and amortization Depreciation Depletion And Amortization Weighted average exercise price per share, Exercised Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price Accumulated other comprehensive (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Accumulated Other Comprehensive Income Loss Net Of Tax Marketable Securities Marketable Securities Policy Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Pro Forma Pro Forma [Member] Net loss Net loss Net Income Loss Number of marketable securities Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions Operating lease liability Operating Lease Liability Current Exercise Price Range Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Domain] Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis Table [Text Block] Additional Paid-in Capital Additional Paid In Capital [Member] Area of lease premises Area Of Lease Premises Area of lease premises. Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Table] Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Table] Summary of Activity related to RSU Stock-Based Payment Awards Schedule Of Nonvested Restricted Stock Units Activity Table [Text Block] Grant for development of lab space Grant For Development Of Lab Space Grant for development of lab space. Summary of Information about Stock Options Outstanding Schedule Of Share Based Compensation Shares Authorized Under Stock Option Plans By Exercise Price Range [Text Block] Risks And Liquidity [Abstract] Risks and liquidity. Entity Registrant Name Entity Registrant Name Cash and Cash Equivalents, at Carrying Value, Total Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Schedule of Fair Value of Each Option Estimated on Date of Grant Using Weighted Average Assumptions Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table [Text Block] Class of Stock Statement Class Of Stock [Axis] US Government Agencies Debt Securities [Member] U.S government securities U.S. Government Securities Share-Based Payment Arrangement, Noncash Expense, Total Stock-based compensation Share Based Compensation Property, Plant and Equipment, Net, Total Property and equipment, net Property Plant And Equipment Net Summary of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Summary of significant accounting policies. Award Type Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Statement [Line Items] Statement [Line Items] Stock-based compensation expense Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture, Total Stock Issued During Period Value Share Based Compensation Marketable securities, Gross unrealized gain Available For Sale Debt Securities Accumulated Gross Unrealized Gain Net Of Tax Available for sale debt securities accumulated gross unrealized gain net of tax. Title of 12(b) Security Security12b Title Increase (Decrease) in Accounts Payable, Total Accounts payable Increase Decrease In Accounts Payable Common Stock Common Stock [Member] Award term Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period Cash, Cash Equivalents and Restricted Cash Cash And Cash Equivalents Restricted Cash And Cash Equivalents Policy Cash flows used in operating activities: Net Cash Provided By Used In Operating Activities [Abstract] Equity Component Equity Component [Domain] Number of equity incentive plans Number Of Equity Incentive Plans Number of equity incentive plans. Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Summary of significant accounting policies. Schedule of Reconciliation of Cash and Cash Equivalents and Restricted Cash Schedule Of Cash And Cash Equivalents Table [Text Block] Entity Address, State or Province Entity Address State Or Province 2027 Lessee Operating Lease Liability Payments Due Year Four Net (decrease) increase in cash and cash equivalents Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Document Type Document Type Entity Shell Company Entity Shell Company Stock-based compensation expense Allocated Share Based Compensation Expense Security Exchange Name Security Exchange Name Class Of Stock [Line Items] Class Of Stock [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Marketable Securities [Table] Marketable Securities [Table] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Net cash used in operating activities Net Cash Provided By Used In Operating Activities Total unrecognized compensation expense, weighted-average period Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 Weighted average remaining contractual term (years), Outstanding Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 Commitments And Contingencies Disclosure [Abstract] Restricted Stock Units Unvested Restricted Stock Units Restricted Stock Units R S U [Member] Schedule of Future Minimum Annual Lease Payments Under Lease Lessee Operating Lease Liability Maturity Table [Text Block] Summary of Stock Option Activity Schedule Of Share Based Compensation Stock Options Activity Table [Text Block] Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance Common stock, shares, outstanding Common Stock Shares Outstanding Amortization of premium and discount on marketable securities, net Accretion Amortization Of Discounts And Premiums Investments Significant other observable inputs (Level 2) Fair Value Inputs Level2 [Member] Operating lease liabilities Increase Decrease In Operating Lease Liabilities Increase decrease in operating lease liabilities. Cash flows provided by (used in) investing activities: Net Cash Provided By Used In Investing Activities [Abstract] Additional grant for the development of lab space. Additional Grant For Development Of Lab Space Additional grant for development of lab space $7.51 - $13.04 Exercise Price Range Three [Member] Exercise price range three. Commitments (Note 8) Commitments And Contingencies Common stock, shares, issued Common Stock Shares Issued Minimum Minimum [Member] ASU 2021-10 Accounting Standards Update202110 [Member] Weighted average exercise price per share, Exercisable at March 31,2023 Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price Accounting Standards Update Adjustments For New Accounting Pronouncements [Axis] Accrued expenses and other current liabilities Accrued expenses and other current liabilities Accrued Liabilities Current Stockholders’ equity: Stockholders Equity [Abstract] Common stock additional capital shares reserved for future issuance. Common Stock Additional Capital Shares Reserved For Future Issuance Common stock additional capital shares reserved for future issuance Counterparty Name [Axis] Cash and Cash Equivalents Cash And Cash Equivalents [Axis] Award Type Award Type [Axis] Aggregate intrinsic value of options exercised Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value Other Nonoperating Income (Expense), Total Other income, net Other Nonoperating Income Expense Voting Common Stock Voting Common Stock [Member] Voting common stock. Research and Development Expense, Total Research and development Research And Development Expense Total undiscounted lease payments Lessee Operating Lease Liability Payments Due Entity Central Index Key Entity Central Index Key Accounting Policies [Abstract] Accrued expenses and other liabilities Increase Decrease In Accrued Liabilities And Other Operating Liabilities Investments Debt And Equity Securities [Abstract] Expected volatility Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Measurement Frequency [Axis] Number of shares available for future grants Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Stock-Based Compensation Disclosure Of Compensation Related Costs Share Based Payments [Text Block] General and Administrative Expense, Total General and administrative General And Administrative Expense Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding, Ending Balance Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding, Beginning Balance Options Outstanding, Number Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options Weighted average exercise price per share, Outstanding at beginning of period Weighted average exercise price per share, Outstanding at end of period Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Research and Development Research And Development Expense [Member] Operating lease right-of-use assets obtained in exchange for operating lease liabilities Right Of Use Asset Obtained In Exchange For Operating Lease Liability Defined contribution plan, employer matching contribution, percent of employee's gross pay Defined Contribution Plan Employer Matching Contribution Percent Adjustments to reconcile net loss to net cash used in operating activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Accumulated Deficit Retained Earnings [Member] Security deposit Security Deposit Operating Lease, until December 31,2023 Operating Lease Until June302023 [Member] Operating lease, until June 30, 2023. Money Market Funds Money Market Funds [Member] Issuance of common stock upon exercise of stock options & vesting of RSUs, (shares) Stock Issued During Period Shares Stock Options Exercised and Vesting of Restricted Stock Units Stock issued during period shares stock options exercised and vesting of restricted stock units. Percentage of stock options vested Sharebased Compensation Arrangement By Sharebased Payment Award Award Vesting Rights Percentage Entity Interactive Data Current Entity Interactive Data Current Schedule of Accrued Expenses and Other Current Liabilities Schedule Of Accrued Expenses And Other Current Liabilities Table [Text Block] Schedule of accrued expenses and other current liabilities. 2024 Lessee Operating Lease Liability Payments Due Next Twelve Months Prepaid expenses and other non-current assets Prepaid Expense and Other Assets, Noncurrent Local Phone Number Local Phone Number Options Exercisable, Weighted Average Exercise Price Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 Award vesting period Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Basis of presentation Basis Of Accounting Policy Policy [Text Block] Lease Contractual Term Lease Contractual Term [Axis] Number of shares, Exercisable at March 31, 2023 Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number Number of shares, Granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Other liabilities Other Liabilities Noncurrent Income Statement Location Income Statement Location [Domain] Rent expense. Rent Expense Rent expense Number of shares, Unvested balance at beginning of period Number of shares, Unvested balance at end of period Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number Beginning balance (shares) Ending balance (shares) Shares Outstanding Prepaid expenses and other current assets Increase Decrease In Prepaid Deferred Expense And Other Assets Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] $4.89 - $7.50 Exercise Price Range Two [Member] Exercise price range two. Number of shares, Outstanding at beginning of period Number of shares, Outstanding at end of period Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Marketable securities Marketable Securities Current Document Fiscal Year Focus Document Fiscal Year Focus Marketable securities, Gross unrealized loss Available For Sale Debt Securities Accumulated Gross Unrealized Loss Net Of Tax Available for sale debt securities accumulated gross unrealized loss net of tax. 2025 Lessee Operating Lease Liability Payments Due Year Two Vesting Vesting [Domain] Earnings Per Share, Basic, Total Net loss per share of common stock, basic Earnings Per Share Basic Assets Assets [Abstract] Prepaid expenses and other current assets Prepaid Expense And Other Assets Current Commitments Commitments Disclosure [Text Block] Financial Instrument [Axis] Liabilities and stockholders’ equity Liabilities And Stockholders Equity [Abstract] Antidilutive Securities, Name Antidilutive Securities Name [Domain] Summary of Activity related to RSA Stock-Based Payment Awards Nonvested Restricted Stock Shares Activity Table [Text Block] Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total Net loss Profit Loss Current assets: Assets Current [Abstract] 2020 Employee Stock Purchase Plan Two Thousand Twenty Employees Stock Purchase Plan [Member] Two thousand twenty employee stock purchase plan. Fair Value Hierarchy and NAV Fair Value Measurements Fair Value Hierarchy [Domain] Defined contribution plan, employer discretionary contribution amount Defined Contribution Plan Employer Discretionary Contribution Amount Payables And Accruals [Abstract] Measurement Frequency [Domain] Changes in operating assets and liabilities: Increase Decrease In Operating Capital [Abstract] $13.05 - $88.98 Exercise Price Range Four [Member] Exercise price range four. Share Based Arrangements To Obtain Goods And Services [Abstract] Participants accrue rights to purchase maximum common stock amount Participants Accrue Rights To Purchase Maximum Common Stock Amount Participants accrue rights to purchase maximum common stock amount. Cover [Abstract] 2028 Lessee Operating Lease Liability Payments Due Year Five Number of shares, Vested Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Current liabilities: Liabilities Current [Abstract] Disbursement incurred costs for lab space Disbursement Incurred Costs For Lab Space Disbursement incurred costs for lab space. Maximum Maximum [Member] Research and development Accrued Research And Development Liabilities Current Accrued research and development liabilities, current. Net cash provided by investing activities Net Cash Provided By Used In Investing Activities Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Number of shares, Exercised Issuance of common stock upon exercise of stock options, (shares) Stock Issued During Period Shares Stock Options Exercised Significant unobservable inputs (Level 3) Fair Value Inputs Level3 [Member] Schedule of Stock-Based Compensation Expense Recorded in Statements of Operations Schedule Of Compensation Cost For Share Based Payment Arrangements Allocation Of Share Based Compensation Costs By Plan Table [Text Block] Use of estimates Use Of Estimates Operating Lease Until December 30 2023 Operating Lease Until December 302023 [Member] Operating lease until december 302023 [member]. Issuance of common stock upon exercise of stock options Stock Issued During Period Value Stock Options Exercised Chestnut Run Lease Chestnut Run Lease [Member] Chestnut run lease. Common stock, shares authorized Common Stock Shares Authorized Short-Term Debt, Type Short Term Debt Type [Domain] Trading Symbol Trading Symbol Other Commitments [Line Items] Other Commitments [Line Items] Noncash lease expense Operating Lease Right Of Use Asset Amortization Expense Comprehensive loss Comprehensive Income Net Of Tax Risk-free interest rate Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Accounts Payable, Current, Total Accounts payable Accounts Payable Current Emerging Growth Company Status Emerging Growth Company Status [Policy Text Block] Emerging Growth Company Status. Plan Name Plan Name [Axis] Reimbursements for development of lab space period Reimbursements For Development Of Lab Space Period Reimbursements for development of lab space period. Common stock, par value Common Stock Par Or Stated Value Per Share Prepaid rent Prepaid Rent Weighted average exercise price per share, Granted Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price Antidilutive securities excluded from computation of earnings per share Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Fair value measurement, assets Cash and Cash Equivalents, Fair Value Disclosure