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Credit Carryforward [Member] Granted (shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Restricted stock Restricted Stock Units (RSUs) [Member] Draw on credit facility Proceeds from Lines of Credit Research and development credits Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount Laboratory equipment Other Machinery and Equipment [Member] Vested (shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Money market funds Estimated fair value Cash and Cash Equivalents, Fair Value Disclosure Prime Rate Prime Rate [Member] Common stock reserved for issuance, increase percentage Common Stock, Capital Shares Reserved For Future Issuance, Annual Percentage Increase Common Stock, Capital Shares Reserved For Future Issuance, Annual Percentage Increase Total revenues Revenues LianBo LianBio [Member] LianBio Expected 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Weighted Average Number of Shares Outstanding, Diluted Debt issuance costs Debt issuance costs Debt Issuance Costs, Line of Credit Arrangements, Net Expected volatility, minimum Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum (Less): Accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment ESPP, maximum number of shares available for purchase by employee (shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Maximum Number of Shares Per Employee Expected term Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term License Fees and Collaboration License Fees and Collaboration [Member] License Fees and Collaboration Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Common stock in LianBio Estimated fair value Equity Securities, FV-NI Debt Securities, Available-for-Sale [Line Items] Debt Securities, Available-for-Sale [Line Items] Lapse of repurchase rights related to common stock issued pursuant to early exercises (shares) Stock Issued During Period, Shares, Lapse Of Repurchase Rights Stock Issued During Period, Shares, Lapse Of Repurchase Rights ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Common stock, $0.0001 par value; 200,000,000 shares authorized; 26,727,458 shares issued and outstanding at December 31, 2022; 20,726,580 shares issued and 20,698,737 outstanding, which excludes 27,840 shares subject to repurchase at December 31, 2021 Common Stock, Value, Issued Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Granted (usd per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Outstanding potentially 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[Domain] Income Statement Location [Domain] Amendment Flag Amendment Flag Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Operating lease expense Operating Lease, Cost Marketable Securities and Long Term Investments Investment, Policy [Policy Text Block] Other comprehensive loss Other Comprehensive Income (Loss), Net of Tax Shares issued in connection with the employee stock purchase plan Stock Issued During Period, Value, Employee Stock Purchase Plan Additional shares to be issued (usd per share) Additional Stock To Be Issued On Eighteen Month Agreement Anniversary, Share Price, Issued for Services Additional Stock To Be Issued On Eighteen Month Agreement Anniversary, Share Price, Issued for Services Comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent Unrealized gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Entity Current Reporting Status Entity Current Reporting Status Other assets Other assets Other Assets, Noncurrent Accrued payroll and benefits Increase (Decrease) in Employee Related Liabilities Common stock, percentage of fair market value Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent Loss on lease termination Operating Lease, Impairment Loss Shares issued in connection with the employee stock purchase plan (shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Counterparty Name [Axis] Counterparty Name [Axis] Beginning balance (shares) Ending balance (shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Summary of Interest Expense Interest Income and Interest Expense Disclosure [Table Text Block] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Credit Facility, First Amendment, Tranche Two Credit Facility, First 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