Class of Stock [Axis] Statement of Financial Position [Abstract] Total current assets Total assets Total current liabilities Total liabilities Total stockholders’ equity (deficit) Balance Balance Total liabilities, redeemable convertible preferred stock and stockholders’ equity (deficit) Income Statement [Abstract] Total operating expenses Loss from operations Total other income (expense), net Net loss and comprehensive loss Statement of Stockholders' Equity [Abstract] Balance (in Shares) Balance (in Shares) Equity Components [Axis] Statement of Cash Flows [Abstract] Net cash used in operating activities Net cash used in investing activities Net cash provided by financing activities Net increase (decrease) in cash, cash equivalents and restricted cash Cash, cash equivalents and restricted cash at beginning of the year Cash, cash equivalents and restricted cash at end of the year Accounting Policies [Abstract] Schedule of reconciliation of cash equivalents and restricted cash [Abstract] Restricted Cash and Cash Equivalents [Axis] Reverse Recapitalization [Abstract] Schedule of shares of common stock issued and outstanding [Abstract] Fair Value Disclosures [Abstract] Schedule of financial assets and liabilities [Abstract] Fair Value Hierarchy and NAV [Axis] Schedule of changes in the fair value [Abstract] Fair value, beginning Fair value, ending Total fair value of financial liabilities Schedule of fair value measurements [Abstract] Condensed Financial Information Disclosure [Abstract] Schedule of prepaid expenses and other current assets [Abstract] Schedule of property and equipment [Abstract] Schedule of accrued expenses and other current liabilities [Abstract] Schedule of other non-current liabilities [Abstract] Cirm Grant Disclosure [Abstract] Significant Agreements [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Schedule of business combination the estimated fair value [Abstract] Commitments and Contingencies Disclosure [Abstract] Schedule of components of lease costs [Abstract] Total lease cost Schedule of operating leases [Abstract] Schedule of operating lease liabilities showing aggregate lease payments [Abstract] Redeemable Convertible Preferred Stock Details [Abstract] Schedule of redeemable convertible preferred stock [Abstract] Common Stock [Abstract] Schedule of reserved common stock for future issuance [Abstract] Share-based Payment Arrangement [Abstract] Schedule of stock option activity [Abstract] Shares Available for Grant, at beginning Shares Available for Grant, at ending Number of Shares, at beginning Number of Shares, at ending Weighted Average Exercise Price, at beginning (in Dollars per share) Weighted Average Exercise Price, at ending (in Dollars per share) Aggregate Intrinsic Value, at beginning (in Dollars) Aggregate Intrinsic Value, at ending (in Dollars) Schedule of stock-based compensation expense [Abstract] Schedule of fair value of employee stock options was estimated using a Black-Scholes option-pricing model [Abstract] Statistical Measurement [Axis] Earnings Per Share [Abstract] Schedule of basic and diluted net loss per share attributable to common stockholders [Abstract] Schedule of diluted net loss per share attributable to common stockholders [Abstract] Total Income Tax Disclosure [Abstract] Schedule of provision for income taxes rate [Abstract] Schedule of company’s net deferred tax assets (liabilities) [Abstract] Schedule of company’s federal and state net operating loss carryforwards [Abstract] Income Tax Authority [Axis] Schedule of reconciliation of unrecognized tax benefits [Abstract] Savings Plan [Abstract] Related Party Transactions [Abstract] Subsequent Events [Abstract] Document Type Document Annual Report Current Fiscal Year End Date Document Period End Date Document Fiscal Year Focus Document Transition Report Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line Two Entity Address, City or Town Entity Address, State or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Ex Transition Period ICFR Auditor Attestation Flag Entity Shell Company Entity Public Float Entity Common Stock, Shares Outstanding Auditor Firm ID Auditor Name Auditor Location Amendment Flag Document Fiscal Period Focus Entity Central Index Key Assets Current assets: Cash and cash equivalents Other receivables Prepaid expenses and other current assets Property and equipment, net Operating lease right-of-use assets Restricted cash Other non-current assets Liabilities, Redeemable Convertible Preferred Stock and Stockholders’ Equity (Deficit) Current liabilities: Accounts payable Current portion of operating lease liabilities Accrued expenses and other current liabilities Derivative tranche liability Non-current portion of operating lease liabilities Common stock warrant liability Earnout liability Other non-current liabilities Commitments and contingencies (Note 9) Redeemable convertible preferred stock: $0.0001 par value — none and 19,522,771 shares authorized at December 31, 2021 and 2020, respectively; none and 15,480,195 shares issued and outstanding at December 31, 2021 and 2020, respectively; liquidation value $41,165 at December 31, 2020 Redeemable convertible preferred stock, par value (in Dollars per share) Redeemable convertible preferred stock, shares authorized Redeemable convertible preferred stock, shares issued Redeemable convertible preferred stock, shares outstanding Redeemable convertible preferred stock, liquidation value (in Dollars) Stockholders’ equity (deficit) Preferred stock: $0.0001 par value — 10,000,000 shares and none authorized at December 31, 2021 and 2020, respectively; none issued and outstanding at December 31, 2021 and 2020 Preferred stock, par value (in Dollars per share) Preferred stock, shares authorized Preferred stock, shares issued Preferred stock, shares outstanding Common stock: $0.0001 par value — 492,000,000 and 50,218,502 shares authorized at December 31, 2021 and 2020, respectively; 37,855,114 and 2,770,702 shares issued and outstanding at December 31, 2021 and 2020, respectively Common stock, par value (in Dollars per share) Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Additional paid-in capital Accumulated deficit Operating expenses Research and development General and administrative Other expense, net Net loss per share attributable to common stockholders, basic and diluted (in Dollars per share) Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted (in Shares) Issuance of common stock upon exercise of stock options Issuance of common stock upon exercise of stock options (in Shares) Issuance of Series A-1 redeemable convertible preferred stock for cash Issuance of Series A-1 redeemable convertible preferred stock for cash (in Shares) Settlement of the redeemable convertible preferred stock tranche liability Vesting of founders’ restricted stock Stock-based compensation expense Total Net loss Issuance of common stock upon exercise of common stock warrants Issuance of common stock upon exercise of common stock warrants (in Shares) Conversion of redeemable convertible preferred stock into common stock in connection with the Reverse Recapitalization (Note 3) Conversion of redeemable convertible preferred stock into common stock in connection with the Reverse Recapitalization (Note 3) (in Shares) Issuance of common stock upon the Reverse Recapitalization and PIPE Financing, net of issuance costs Issuance of common stock upon the Reverse Recapitalization and PIPE Financing, net of issuance costs (in Shares) Cash flows from operating activities Net loss Adjustments to reconcile net loss to net cash used in operating activities Depreciation and amortization expense Non-cash lease expense Stock-based compensation expense Change in fair value of common stock warrant liability Change in fair value of earnout liability Change in fair value of earnout liability Changes in operating assets and liabilities: Accounts payable Accrued expenses and other current liabilities Operating lease liability Other non-current liabilities Cash flows used in investing activities Cash flows from financing activities Net proceeds from Reverse Recapitalization and PIPE Financing (Note 3) Proceeds from issuance of redeemable convertible preferred stock, net of issuance costs Proceeds from exercise of common stock options Proceeds from exercise of common stock warrants Supplemental and non-cash items reconciliations: Accounts payable and accrued expenses for purchases of property and equipment Right-of-use asset obtained in exchange for lease liabilities