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Fair Value Measurements, Recurring Fair Value, Recurring [Member] Options granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Sale of Stock Sale of Stock [Domain] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Document Fiscal Period Focus Document Fiscal Period Focus All Executive Categories All Executive Categories [Member] Balance Sheet Location Statement of Financial Position Location, Balance [Domain] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Assets Assets [Abstract] Document Type Document Type Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Cash, cash equivalents and restricted cash at beginning of period Cash, cash equivalents and restricted cash at end of period Total cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Purchases of marketable securities Payments to Acquire Marketable Securities RSUs vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Maximum Maximum [Member] Recorded deferred revenue Contract with Customer, Liability Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Accrued clinical, contract research and lab supplies Accrued Clinical, Contract Research And Lab Supplies Accrued contract research and lab supplies. 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Amendment Flag Amendment Flag Entity Registrant Name Entity Registrant Name 2024 Public Offering Public Offering 2024 [Member] Public Offering 2024 Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Organization Consolidation And Presentation Of Financial Statements [Table] Organization Consolidation And Presentation Of Financial Statements [Table] Organization, consolidation and presentation of financial statements. Fair Value as of Grant Date Award Grant Date Fair Value Subsequent Events [Abstract] Contractual initial research period Contractual Initial Research Period Contractual initial research period. Upfront payment Upfront Payment Upfront payment. Level 2 Fair Value, Inputs, Level 2 [Member] Number of shares issued (in shares) Sale of Stock, Number of Shares Issued in Transaction Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Domain] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Issuance of common stock in "at the market" financing, net of issuance costs of $1,684 Stock Issued During Period, Value, New Issues Marketable securities, current Estimated fair value, short-term Debt Securities, Available-for-Sale, Excluding Accrued Interest, Current Entity Address, Postal Zip Code Entity Address, Postal Zip Code Collaborative Arrangement and Arrangement Other than Collaborative Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Summary of Stock-Based Compensation Expense Related to Stock Options and 2020 ESPP Included in Statements of Operations Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Principles of Consolidation Consolidation, Policy [Policy Text Block] Restatement Determination Date: Restatement Determination Date [Axis] Collaborative Arrangement and Arrangement Other than Collaborative Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Title of 12(b) Security Title of 12(b) Security Common stock, $0.001 par value— 500,000,000 shares authorized as of May 31, 2024 and November 30, 2023; 64,356,535 and 48,718,552 shares issued and outstanding as of May 31, 2024 and November 30, 2023, respectively Common Stock, Value, Issued Share-Based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Issuance costs related to equity financing included in accrued expenses and other current liabilities Issuance Costs Related To Pre Funded Warrants Included In Accrued Expenses And Other Liabilities Issuance Costs Related To Pre Funded Warrants Included In Accrued Expenses And Other Liabilities Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Collaboration agreement contract term Collaboration Agreement Contract Term Collaboration agreement contract term. Weighted-average grant date fair value, RSUs forfeited (in USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Cash flows from financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Preferred stock, $0.001 par value— 10,000,000 shares authorized as of May 31, 2024 and November 30, 2023; no shares issued and outstanding as of May 31, 2024 and November 30, 2023 Preferred Stock, Value, Issued Maturities of marketable securities Proceeds from Sale, Maturity and Collection of Investments Shares available for future equity grants Share-Based Payment Arrangement [Member] Number of options outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Shares available for issuance under employee stock purchase plan Shares expected to be purchased under employee stock purchase plan Employee Stock [Member] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Net loss per share, basic (in USD per share) Earnings Per Share, Basic Accounts payable Increase (Decrease) in Accounts Payable Proceeds from issuances of common stock in "at the market" financing, net of issuance costs Net proceeds from offering Proceeds from Issuance of Common Stock Cash flows from operating leases Operating Lease, Payments Included in cash and cash equivalents Cash and Cash Equivalents [Member] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Pfizer Agreement Pfizer [Member] Pfizer Vesting of early exercised stock options Adjustments To Additional Paid In Capital Share Based Compensation Vesting Of Early Exercised Stock Options Adjustments to additional paid in capital share based compensation vesting of early exercised stock options. Additions to property and equipment included in accounts payable and accrued expenses and other current liabilities Capital Expenditures Incurred but Not yet Paid Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Schedule Of Stock By Class [Table] Stock, Class of Stock [Table] Total current liabilities Liabilities, Current Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Denominator: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Total compensation cost related to stock-based awards yet to recognize Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount Total assets Assets Concentration of Credit Risk Concentration Risk, Credit Risk, Policy [Policy Text Block] RSUs granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Underwriters Over-Allotment Option [Member] Summary of Investments Fair Value Measurement on Recurring Basis Fair Value, Assets Measured on Recurring Basis [Table Text Block] Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Fair Value Measurements Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block] Commitments and contingencies (Note 6) Commitments and Contingencies Termination Date Trading Arrangement Termination Date Class of Warrant or Right Class of Warrant or Right [Domain] Additional payment received to exercise option to expand number of targets Additional Payment Received To Exercise Option To Expand Number Of Targets Additional payment received to exercise option to expand number of targets. Schedule Of Related Party Transactions By Related Party [Table] Related Party Transaction [Table] Exercise price of warrants (in USD per share) Class of Warrant or Right, Exercise Price of Warrants or Rights 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] Stock-Based Compensation Share-Based Payment Arrangement [Text Block] Entity Address, City or Town Entity Address, City or Town Leases Lessee, Leases [Policy Text Block] Schedule of Activity under 2020 Plan and 2012 Plan Share-Based Payment Arrangement, Option, Activity [Table Text Block] Total stock-based compensation Share-Based Payment Arrangement, Expense Net loss Net loss Net Income (Loss) Attributable to Parent Trading Arrangement: Trading Arrangement [Axis] Weighted-average exercise price, options granted (in USD per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Contribution expense Defined Contribution Plan, Employer Discretionary Contribution Amount RSUs forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Research and development milestone payments Revenue, Remaining Performance Obligation, Variable Consideration Amount, Research And Development Milestones Revenue, Remaining Performance Obligation, Variable Consideration Amount, Research And Development Milestones Proceeds from issuance under employee stock purchase plan Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Excluding Option Exercised Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Entity File Number Entity File Number Vesting of restricted stock units (in shares) Restricted Stock, Shares Issued Net of Shares for Tax Withholdings Document Fiscal Year Focus Document Fiscal Year Focus Income Statement [Abstract] Income Statement [Abstract] Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Name Forgone Recovery, Individual Name Transaction Transaction [Domain] Document Period End Date Document Period End Date Sale of Stock Sale of Stock [Axis] Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Number of RSUs, beginning balance (in shares) Number of RSUs, ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Asset Class Asset Class [Axis] Insider Trading Arrangements [Line Items] Warrants offering expenses Warrants Offering Expenses Warrants offering expenses. Condensed Consolidated Balance Sheet Components Supplemental Balance Sheet Disclosures [Text Block] Unrealized loss, long-term Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax, Noncurrent Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax, Noncurrent Contract assets Contract with Customer, Asset, after Allowance for Credit Loss Number of performance obligations Number Of Performance Obligations Number Of Performance Obligations Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Collaboration revenue recognized from opening contract liability Contract with Customer, Liability, Revenue Recognized Adjustment to Compensation: Adjustment to Compensation [Axis] Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Document Transition Report Document Transition Report Document Quarterly Report Document Quarterly Report Maximum increase or decrease percentage of warrants Maximum Increase Or Decrease Percentage Of Warrants Maximum increase or decrease percentage of warrants. Purchase price of warrants (in USD per share) Class Of Warrant Or Right, Purchase Price Of Warrants Or Rights Class Of Warrant Or Right, Purchase Price Of Warrants Or Rights Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value, Recurring and Nonrecurring [Table] Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Current Reporting Status Entity Current Reporting Status At the Market Offering At The Market Offerings [Member] At the market offerings. Accumulated deficit Retained Earnings [Member] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Related Party Related and Nonrelated Parties [Axis] Weighted-average number of shares outstanding, basic (in shares) Weighted Average Number of Shares Outstanding, Basic Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Restricted stock units issued and outstanding Restricted Stock Units (RSUs) [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Accrued professional services Accrued Professional Fees, Current Executive Category: Executive Category [Axis] Name Awards Close in Time to MNPI Disclosures, Individual Name Options forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period Entity Filer Category Entity Filer Category Income Statement Location Statement of Income Location, Balance [Domain] Company Selected Measure Name Company Selected Measure Name