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Weighted average unvested common stock issued upon exercise of common stock options Accretion on marketable securities, net Accretion on marketable securities, net Accretion on marketable securities, net Document Fiscal Year Focus Document Fiscal Year Focus License Agreement License Agreement [Text Block] License agreement text block. Preferred Stock, Convertible, Conversion Price, Increase Preferred Stock, Convertible, Conversion Price, Increase Lessee operating lease liability payments due after year four. Lessee Operating Lease Liability Payments Due After Year Four Thereafter Sale of Stock [Domain] Sale of Stock Expansion Lease Agreement [Member] Expansion Lease Agreement [Member] Share-Based Payment Arrangement, Recognized Amount [Abstract] ATM Sales Agreement [Member] ATM Sales Agreement [Member] ATM Sales Agreement Security Exchange Name Security Exchange Name New Accounting Pronouncements, Policy [Policy Text Block] Recently Issued Accounting Pronouncements Preferred stock, shares issued Preferred Stock, Shares Issued Preferred Stock, Shares Issued, Total Preferred Stock, Shares Authorized Preferred stock, shares authorized Number of lease term renewal option Number of Lease Term Renewal Number of lease term renewal. Property, Plant and Equipment, Gross, Ending Balance Property, Plant and Equipment, Gross, Beginning Balance Property, Plant and Equipment, Gross, Total Property, Plant and Equipment, Gross Property plant and equipment, gross Performance-based stock options, vested Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested, Number of Shares Shares vested Lease assets obtained in exchange for operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Right-of-use asset obtained in exchange for lease liability Financial Instrument [Axis] February Two Thousand Twenty Four Securities Purchase Agreement [Member] February Two Thousand Twenty Four Securities Purchase Agreement [Member] Entity Emerging Growth Company Entity Emerging Growth Company Accumulated Other Comprehensive Gain (Loss)[Member] Accumulated Other Comprehensive Loss [Member] Accumulated Other Comprehensive Loss [Member] Aggregate Intrinsic Value, Exercised Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Amendment Flag Amendment Flag Schedule of Accrued Liabilities [Table Text Block] Schedule of Accrued and Other Current Liabilities IPO [Member] IPO [Member] Issuance of common stock under benefit plans Proceeds from issuances of common stock under benefit plans Proceeds from Issuance of Common Stock Under Benefit Plans Proceeds from Issuance of Common Stock Under Benefit Plans Basis of Accounting, Policy [Policy Text Block] Basis of Presentation Increased decrease in stock reserve for future issuance Increased decrease in stock reserve for future issuance Leases [Abstract] Unvested restricted common stock subject to repurchase Unvested restricted common stock member. Unvested Restricted Common Stock [Member] Unrealized losses 12 months or greater, fair value Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value Entity File Number Entity File Number Unrealized losses 12 months or greater, unrealized losses Held to Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Accumulated Loss Held to Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Accumulated Loss 2024 (remaining six months) Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Total cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash, cash equivalents and restricted cash at end of the period Cash, cash equivalents and restricted cash at beginning of the period Accounts Payable Accrued Expenses And Other Liabilities Related Parties Transaction Accounts Payable Accrued Expenses And Other Liabilities Related Party Transactions Share-Based Payment Arrangement [Abstract] Accounts payable Accounts Payable, Current, Total Accounts Payable, Current Marketable Securities Cash, Cash Equivalents, and Marketable Securities [Text Block] Operating Expenses Total operating expenses Increase in common stock Stockholders' Equity, Increase Decrease In Common Stock Percent Stockholders' equity increase decrease in common stock percent. Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Expected term (years) Preferred stock, $0.0001 par value; 50,000,000 shares authorized at June 30, 2024 and December 31, 2023; no shares issued and outstanding at June 30, 2024 and December 31, 2023. Preferred Stock, Value, Issued Preferred Stock, Value, Issued, Ending Balance Preferred Stock, Value, Issued, Beginning Balance Preferred Stock, Value, Issued, Total Entity Small Business Entity Small Business Entity Shell Company Entity Shell Company Warrants exercise price Class of Warrant or Right, Exercise Price of Warrants or Rights Unrecognized compensation expense Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Net Loss Per Share Earnings Per Share [Text Block] Cancelled Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Total Cancelled Entity Address, Address Line One Entity Address, Address Line One Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Restricted cash Restricted Cash Restricted Cash, Total Unrealized losses on fair value Fair Value, Option, Credit Risk, Gains (Losses) on Assets Income Statement Location [Axis] Variable lease cost Variable Lease, Cost 2021 Plan Two Thousands And Twenty One Incentive Award Plan [Member] Two thousands and twenty one incentive award plan member. Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Dividend yield Fair Value, Inputs, Level 2 [Member] Level 2 License agreement abstract. License Agreement [Abstract] Depreciation Depreciation, Depletion and Amortization, Total Depreciation, Depletion and Amortization Title of 12(b) Security Title of 12(b) Security Denominator: Denominator [Abstract] Denominator [Abstract] Lease Contractual Term [Axis] Lease Contractual Term Schedule of Subsidiary or Equity Method Investee [Table] 2021 Employee Stock Purchase Plan [Member] Twenty Twenty One Employee Stock Purchase Plan [Member] Twenty Twenty One Employee Stock Purchase Plan [Member] Assets, Fair Value Adjustment Total assets Other income: Other Nonoperating Income (Expense) [Abstract] Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows from investing activities: Warrant excercised Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Exercised Long-term line of credit Long-term Line of Credit, Total Long-Term Line of Credit Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Schedule of Fair Value, off-Balance-Sheet Risks [Table] Unrealized losses Unrealized losses Debt Securities, Available-for-Sale, Unrealized Loss Cash and Cash Equivalents [Axis] Unrealized losses on accumulated loss Unrealized losses on accumulated loss Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss, Total Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Weighted- Average Remaining Contractual Term, Exercisable Liability Related To Repurchase Of Early Exercised Options Liability related to repurchase of early exercised options. Liability of early exercise options Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance Common Stock, Shares, Outstanding Common stock, shares outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Risk-free rate of interest Significant Accounting Policies. Significant Accounting Policies [Line Items] Significant Accounting Policies [Line Items] Offering expenses Offering Expenses Offering Expenses Income Statement Location [Domain] Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Weighted- Average Exercise Price, Granted 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 Marketable Securities Marketable Securities, Total Security deposit Security Deposit Net Cash Provided by (Used in) Financing Activities Net cash provided by financing activities Entity Filer Category Entity Filer Category Restricted Cash and Cash Equivalents, Total Restricted Cash and Cash Equivalents Restricted cash Right of Use Asset. Right Of Use Asset Total lease assets Right-of-use assets Accrued Liabilities, Current [Abstract] Purchases of marketable securities Payments to Acquire Marketable Securities Total other income Nonoperating Income (Expense) Purchases of property and equipment included in accounts payable and accrued and other current liabilities Capital Expenditures Incurred but Not yet Paid Purchases of equipment included in accounts payable Liabilities Total liabilities Property, Plant and Equipment [Table] Schedule Of Property Plant And Equipment [Table] Unrealized gains Debt Securities, Available-for-Sale, Unrealized Gain Total stockholders' equity Equity, Attributable to Parent Ending balance Beginning balance Numerator: Numerator [Abstract] Numerator Net loss Unrealized losses 12 months or greater, fair value Held to Maturity Securities Continuous Unrealized Loss Position Twelve Months or Greater Fair Value Held to Maturity Securities Continuous Unrealized Loss Position Twelve Months or Greater Fair Value Cash and Cash Equivalents [Domain] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Statement of Financial Position [Abstract] Weighted average shares number of shares outstanding, Diluted Weighted - average shares used to compute net loss per common share - diluted Weighted Average Number of Shares Outstanding, Diluted Weighted Average Number of Shares Outstanding, Diluted, Total Share issued, price per share Shares Issued, Price Per Share Amortized cost Debt Securities, Available-for-Sale, Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Total Operating Lease, Weighted Average Remaining Lease Term Weighted-average remaining lease term (years) - operating leases Fair market value of the common stock, percentage Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent Less: weighted-average unvested restricted common stock subject to repurchase Weighted average unvested restricted common stock subject to repurchase Weighted average unvested restricted common stock subject to repurchase Interest and other income, net Interest and Other Income Area of Lease Area of Lease Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Weighted- Average Exercise Price, Ending balance Weighted- Average Exercise Price, Beginning balance Aggregate common stock offering price Aggregate Common Stock Offering Price Aggregate Common Stock Offering Price Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Basic and Diluted Net Loss Per Share Proceeds from issuance of common stock and pre-funded warrants from Private Placement Proceeds from issuance of common stock and pre-funded warrants from Private Placement Proceeds from issuance of common stock and pre-funded warrants from Private Placement Leasehold Improvements [Member] Leasehold Improvements Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] 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 Measurement Frequency [Domain] Payments to Acquire Property, Plant, and Equipment, Total Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Contracted services incurred Professional and Contract Services Expense Professional and Contract Services Expense, Total Commission for agent on sales Commission For Agent on Sales Commission For Agent on Sales Share issued upon private placement, share Issuance of common stock under Private Placement, net of issuance costs, Shares Stock Issued During Period, Shares, New Issues Sales and maturities of marketable securities Proceeds from Sale and Maturity of Marketable Securities Finite-Lived Intangible Assets by Major Class [Axis] Weighted Average Basic Shares Outstanding, Pro Forma Weighted average common shares outstanding Summary of Available-for-Sale Securities and Gross Unrealized Losses Marketable Securities [Table Text Block]