Cover [Abstract] Statement [Table] Statement [Table] Entity Addresses, Address Type [Axis] Address Type [Domain] Business Contact [Member] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Statement [Line Items] Statement [Line Items] Amendment Flag City Area Code Document Type Entity Address, Address Line One Entity Address, City or Town Entity Address, Postal Zip Code Entity Address, State or Province Entity Central Index Key Entity Emerging Growth Company Entity Filer Category Entity Incorporation, State or Country Code Entity Registrant Name Entity Small Business Entity Tax Identification Number Local Phone Number Statement of Financial Position [Abstract] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Related and Nonrelated Party Status [Axis] Related and Nonrelated Party Status [Domain] Assets [Abstract] Assets Assets Total assets Assets, Current [Abstract] Current assets: Accounts Receivable, after Allowance for Credit Loss, Current Receivable from related party Assets, Current Total current assets Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Prepaid expenses and other current assets Short-Term Investments Short-term investments Unbilled Receivables, Current Unbilled receivable from related party Unbilled receivable from related party Operating Lease, Right-of-Use Asset Right-of-use operating lease assets Other Assets and Restricted Cash Other assets and restricted cash Other assets and restricted cash. Property, Plant and Equipment, Net Property and equipment, net Property and equipment, net Liabilities and Equity [Abstract] Liabilities, Convertible Preferred Stock and Stockholders' Equity/(Deficit) Commitments and Contingencies Commitments and contingencies (Note 16) Deferred Revenue, Noncurrent Deferred revenue—related party Deferred revenue noncurrent Liabilities Total liabilities Liabilities and Equity Total liabilities, convertible preferred stock and stockholders' equity/(deficit) Liabilities, Current [Abstract] Current liabilities: Accounts Payable, Current Accounts payable Accrued Liabilities, Current Accrued expenses Deferred Revenue, Current Current portion of deferred revenue—related party Deferred revenue current Liabilities, Current Total current liabilities Operating Lease, Liability, Current Current portion of operating lease liabilities Current portion of lease liabilities Operating Lease, Liability, Noncurrent Long-term operating lease liabilities Long-term lease liabilities Equity, Attributable to Parent [Abstract] Stockholders' equity/(deficit): Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive income/(loss) Additional Paid in Capital, Common Stock Additional paid-in capital Common Stock, Value, Issued Common stock, par value per share—$0.001 and $0.0001 at December 31, 2023 and 2022, respectively; authorized shares – 150,000,000 and 8,722,279 at December 31, 2023 and 2022, respectively; issued and outstanding shares – 14,817,696 and 875,279 at December 31, 2023 and 2022, respectively Preferred Stock, Value, Issued Preferred stock; $0.001 par value per share; authorized shares – 10,000,000 and none at December 31, 2023 and 2022, respectively; issued and outstanding – none at December 31, 2023 and 2022 Proceeds (Net of Issuance Costs) Retained Earnings (Accumulated Deficit) Accumulated deficit Equity, Attributable to Parent Total stockholders' equity/(deficit) Ending balance Beginning balance Temporary Equity, Carrying Amount, Attributable to Parent Convertible preferred stock; $0.0001 par value per share; authorized shares – none and 33,336,283 at December 31, 2023 and 2022, respectively; issued and outstanding – none and 33,336,282 at December 31, 2023 and 2022, respectively; liquidation preference – none and $121,500 at December 31, 2023 and 2022, respectively Common Stock, Par or Stated Value Per Share Common stock, Par value Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued Common stock, Shares issued Common Stock, Shares, Outstanding Common stock, Shares outstanding Preferred Stock, Par or Stated Value Per Share Preferred stock, par value Preferred Stock, Shares Authorized Preferred stock, Shares authorized Authorized Shares Preferred Stock, Shares Issued Preferred stock, Shares issued Shares Issued Preferred Stock, Shares Outstanding Preferred stock, Shares outstanding Shares Outstanding Temporary Equity, Liquidation Preference Convertible preferred stock, Liquidation Preference Temporary Equity, Par or Stated Value Per Share Convertible preferred stock, par value Temporary Equity, Shares Authorized Convertible preferred stock, Shares authorized Temporary Equity, Shares Issued Convertible preferred stock, Share issued Temporary Equity, Shares Outstanding Convertible preferred stock, Shares Outstanding Income Statement [Abstract] Related Party, Type [Axis] Related Party, Type [Domain] Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Comprehensive loss: Comprehensive Income (Loss), Net of Tax, Attributable to Parent Total comprehensive loss Net Income (Loss) Attributable to Parent Net loss Net loss Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive income/(loss): Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Total other comprehensive income/(loss) OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Change in unrealized gains/(losses) related to available-for-sale debt securities Earnings Per Share, Basic Net loss per share attributable to common stockholders, basic Earnings Per Share, Diluted Net loss per share attributable to common stockholders, diluted Nonoperating Income (Expense) [Abstract] Other income/(expense): Gain (Loss), Foreign Currency Transaction, before Tax (Loss)/gain on currency exchange, net Interest Income, Other Interest income Nonoperating Income (Expense) Total other income Other Nonoperating Income (Expense) Other expense Operating Expenses [Abstract] Operating expenses: General and Administrative Expense General and administrative Operating Expenses Total operating expenses Research and Development Expense Research and development Research and development expense Operating Income (Loss) Loss from operations Revenue from Contract with Customer [Abstract] Revenues: Revenue from Contract with Customer, Excluding Assessed Tax License revenue—related party Weighted Average Number of Shares Outstanding, Diluted Weighted-average number of share of common stock outstanding, used in computing net loss per share of commonstock, diluted Weighted average number of shares outstanding, diluted Weighted Average Number of Shares Outstanding, Basic Weighted-average number of share of common stock outstanding, used in computing net loss per share of commonstock, basic Weighted average number of shares outstanding, basic Statement of Stockholders' Equity [Abstract] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Convertible Preferred Stock [Member] Convertible Preferred Stock [Member] Convertible Preferred Stock AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income/(Loss) [Member] Additional Paid-in Capital [Member] Additional Paid-in Capital [Member] Common Stock [Member] Common Stock [Member] Common Stock Preferred Stock [Member] Preferred Stock [Member] Retained Earnings [Member] Accumulated Deficit [Member] APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Stock-based compensation expense Change in Par Value Resulting from Recapitalization Adjustment for change in common stock par value in connection with the Reverse Merger Change in par value resulting from recapitalization. Issuance of Common Stock and Pre-funded Warrants in the Pre-closing Financing Net of Issuance Costs Issuance of common stock and pre-funded warrants in the pre-closing financing, net of issuance costs Issuance of common stock and pre-funded warrants in the pre-closing financing net of issuance costs. Issuance Of Common Stock And Pre Funded Warrants In the Pre Closing Financing Net Of Issuance Costs Share Issuance of common stock and pre-funded warrants in the pre-closing financing, net of issuance costs, shares Issuance of common stock and pre funded warrants in the pre closing financing net of issuance costs share Other Comprehensive Income (Loss), Net of Tax Other comprehensive income (loss) Reverse Recapitalization Transaction Costs Reverse recapitalization transaction costs Transaction costs Reverse recapitalization transaction costs. Shares, Outstanding Ending balance, shares Beginning balance, shares Common stock, Shares outstanding Stock Issued During Period, Shares, Conversion of Convertible Securities Conversion of convertible preferred stock to common stock in connection with the Reverse Merger, shares Stock Issued During Period, Shares, Conversion of Units Issuance of convertible preferred stock, net of issuance costs, shares Stock Issued During Period, Shares, New Issues Issuance of common stock to former stockholders of MagentaTherapeutics, Inc. in connection with the Reverse Merger, shares Sold and issued of shares Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Exercise of common stock options, shares Number of Shares, Exercised Stock Issued During Period, Value, Conversion of Convertible Securities Conversion of convertible preferred stock to common stock in connection with the Reverse Merger Stock Issued During Period, Value, Conversion of Units Issuance of convertible preferred stock, net of issuance costs Stock Issued During Period, Value, New Issues Issuance of common stock to former stockholders of Magenta Therapeutics, Inc. in connection with the Reverse Merger Stock Issued During Period, Value, Stock Options Exercised Exercise of common stock options Stock Issuance Cost Stock issuance cost Stock issuance cost. Statement of Cash Flows [Abstract] Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents 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, Period Increase (Decrease), Including Exchange Rate Effect Increase in cash, cash equivalents and restricted cash Net Cash Provided by (Used in) Financing Activities [Abstract] Cash flows from financing activities: Cash Acquired In Connection With The Reverse Recapitalization Cash acquired in connection with the reverse recapitalization Cash acquired in connection with the reverse recapitalization. Net Cash Provided by (Used in) Financing Activities Net cash provided by financing activities Payment of Reverse Recapitalization Transaction Costs Payment of reverse recapitalization transaction costs Payment of reverse recapitalization transaction costs Payments for Repurchase of Convertible Preferred Stock Payment of issuance costs for Series A convertible preferred stock Payments of Stock Issuance Costs Payment of issuance costs in connection with the pre-closing financing Proceeds from Issuance of Convertible Preferred Stock Proceeds from issuance of Series A convertible preferred stock Proceeds from Notes Payable Proceeds from issuance of promissory notes payable to related party Aggregate principal amount Proceeds from Stock Options Exercised Proceeds from exercise of stock options Proceeds From The Pre-Closing Financing Proceeds from the pre-closing financing Proceeds from the pre-closing financing. Repayments of Notes Payable Repayment of promissory notes payable to related party Principal and interest repaid Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities Net cash provided by/(used in) investing activities Payments for Capital Improvements Capital expenditures Payments to Acquire Short-Term Investments Purchases of short-term investments Proceeds from Maturities, Prepayments and Calls of Short-Term Investments Proceeds from maturities of short-term investments Net Cash Provided by (Used in) Operating Activities [Abstract] Cash flows from operating activities: Adjustments 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: Accretion (Amortization) of Discounts and Premiums, Investments Accretion of discount on short-term investments Depreciation Depreciation expense Operating Lease, Right-of-Use Asset, Periodic Reduction Amortization of right-of-use operating lease assets Share-Based Payment Arrangement, Noncash Expense Stock-based compensation expense Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities: Accounts Payable, Accrued Expenses and Lease Liabilities Accounts payable, accrued expenses and lease liabilities Accounts payable, accrued expenses and lease liabilities. Increase (Decrease) in Deferred Revenue Deferred revenue—related party Increase (Decrease) in Due from Related Parties Receivable from related party Increase (Decrease) in Other Operating Assets Other assets Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other current assets Unbilled Receivable from Related Party Unbilled receivable from related party Unbilled receivable from related party. Net Cash Provided by (Used in) Operating Activities Net cash used in operating activities Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net loss Supplemental Cash Flow Information [Abstract] Supplemental Disclosure Additions to Right-Of-Use Lease Assets From New Operating Lease Liabilities Additions to right-of-use lease assets from new operating lease liabilities Additions to Right-Of-Use Lease Assets From New Operating Lease Liabilities Conversion of Convertible Preferred Stock Into Common Stock Conversion of convertible preferred stock into common stock Conversion of convertible preferred stock into common stock. Income Taxes Paid, Net Cash paid for taxes Interest Paid, Excluding Capitalized Interest, Operating Activities Cash paid for interest Restricted Cash Restricted cash Restricted Cash and Cash Equivalents Total cash, cash equivalents and restricted cash Accounting Policies [Abstract] Business Description and Basis of Presentation [Text Block] Organization, Description of Business and Liquidity Basis of Presentation and Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Business Combination and Asset Acquisition [Abstract] Mergers, Acquisitions and Dispositions Disclosures [Text Block] Reverse Merger Short-Term Investments [Abstract] Investment [Text Block] Short-Term Investments Prepaid Expense and Other Assets, Current [Abstract] Other Current Assets [Text Block] Prepaid Expenses and Other Current Assets Property, Plant and Equipment [Abstract] Property, Plant and Equipment Disclosure [Text Block] Property and Equipment Fair Value Disclosures [Abstract] Fair Value Disclosures [Text Block] Fair Value of Financial Instruments Payables and Accruals [Abstract] Payables and Accruals [Abstract] Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Accrued Expenses Leases [Abstract] Lessee, Operating Leases [Text Block] Leases Equity [Abstract] Equity [Text Block] Common Stock Stockholders' Equity Note [Abstract] Preferred Stock [Text Block] Preferred Stock and Convertible Preferred Stock Share-Based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Text Block] Stock-Based Compensation Related Party Transactions [Abstract] Disclosure of License Revenue to Related Parties [Text Block] License Revenue - Related Party Disclosure of license revenue to related parties Income Tax Disclosure [Abstract] Income Tax Disclosure [Text Block] Income Taxes Earnings Per Share [Abstract] Earnings Per Share [Text Block] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies