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VOWST Business [Member] VOWST Business [Member] Unvested restricted stock units Incremental Common Shares Attributable to Dilutive Effect of Unvested Restricted Stock Units Incremental common shares attributable to dilutive effect of unvested restricted stock units Issuance of common stock from at the market equity offering, value Stock Issued During Period Value At Market Equity Offerings Stock issued during period value at market equity offerings. Total revenue Revenues Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Net cash (used in) investing activities Title of 12(b) Security Title of 12(b) Security Schedule of Segment Reporting Information, by Segment [Table] Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Weighted Average Exercise Price, Forfeited Weighted Average Grant Date Fair Value, Forfeited Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment, after Tax, Total OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment, after Tax Other comprehensive income Sublease income. Sublease income1 Sublease income Related Party Related and Nonrelated Parties [Domain] Income Taxes Income Tax Disclosure [Text Block] Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year 2026 (remaining 9 months) Document Information [Table] Other Liabilities, Noncurrent, Total Other long-term liabilities Other Liabilities, Noncurrent Changes in operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Property, Plant and Equipment [Table Text Block] Schedule of Property and Equipment, Net Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Weighted Average Exercise Price, Beginning Balance Weighted Average Exercise Price, Ending Balance Income Tax Disclosure [Abstract] Additional Paid-in Capital [Member] Additional Paid-in Capital [Member] Income Statement Location Statement of Income Location, Balance [Axis] Trading Symbol Trading Symbol Nature Of Business And Basis Of Presentation [Line Items] Nature Of Business And Basis Of Presentation [Line Items] Nature of business and basis of presentation. Property and Equipment, Net Property, Plant and Equipment Disclosure [Text Block] Schedule Of Related Party Transactions By Related Party [Table] Related Party Transaction [Table] Subsequent Event Type [Axis] Employee-related Liabilities, Current, Total Employee-related Liabilities, Current Payroll and employee-related costs Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Accounts Payable and Accrued Liabilities Disclosure [Text Block] Summary of Accrued Liabilities of Continuing Operations Lessee, Operating Lease, Liability, to be Paid Total future minimum lease payments Lessee, Operating Lease, Liability, Undiscounted Excess Amount Less: interest Less: interest Employee Stock Option Market Condition [Member] Employee Stock Option Market Condition [Member] Employee Stock Option Market Condition [Member] Equity Components Equity Components [Axis] Nonoperating Income (Expense) Total other income (expense), net Equity Component Equity Component [Domain] Upfront payment satisfaction fees. Upfront Payment Satisfaction Fees Upfront payment satisfaction fees Address Type [Domain] Issuance of common stock under ESPP, shares Stock Issued During Period, Shares, Employee Stock Purchase Plans Billed Contracts Receivable Billed Contract Receivable Billed contracts receivables. Accounts receivable Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Expiration period of stock options granted Entity Incorporation Month And Year Of Incorporation Entity incorporation month and year of incorporation. Entity incorporated month and year Stock Issued During Period To Related Party Value Stock issued during period to related party, value. Aggregate fair value of common stock issued Issuance of common stock from Securities Purchase Agreement - related party, value Statement of Comprehensive Income [Abstract] Increase Decrease Accrued Liabilities Due To SPN-Related Party Increase decrease accrued liabilities due to SPN-related party. Accrued liabilities due to SPN - related party Accrued liabilities due to SPN - related party Maximum [Member] Maximum [Member] Entity Addresses, Address Type [Axis] Statistical Measurement [Axis] Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Weighted Average Exercise Price, Exercised Passthrough Expenses [Member] Passthrough Expenses [Member] Passthrough Expenses [Member] Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Total Common Stock, Value, Issued Common stock, $0.001 par value; 360,000,000 shares authorized at March 31, 2026 and December 31, 2025; 9,592,326 and 9,556,466 shares issued and outstanding at March 31, 2026 and December 31, 2025, respectively Gross proceeds from sale of common stock Gross Proceeds From Issuance Of Common Stock Gross proceeds from issuance of common stock. Net Income (Loss) Available to Common Stockholders, Diluted Net (loss) income attributable to common stockholders - diluted Payment of outstanding amount Payment of Accrued Liabilities Due to Related Party Cash outflow from repayment of accrued liabilites due to related party. SER One Hundred And Fifty Five [Member] SER one hundred and fifty five. SER-155 [Member] RSU and PSU [Member] Restricted Stock Units and Performance Stock Units. Restricted Stock Units And Performance Stock Units [Member] Grant received for clinical development Grant Received for Clinical Development Grant received for clinical development. Operating lease liabilities Increase Decrease In Operating Lease Liabilities Increase decrease in operating lease liabilities. Income (Loss) from Continuing Operations, Per Diluted Share Net income (loss) from continuing operations per share attributable to common stockholders - diluted Net (loss) income per share applicable to common stockholders - diluted Preferred stock, shares authorized Preferred Stock, Shares Authorized Related Party Transaction [Line Items] Related Party Transaction [Line Items] Entity Registrant Name Entity Registrant Name Other Nonoperating Income (Expense), Total Other (expense) income, net Other Expense Other income (expense) Income Tax Expense (Benefit), Total Income tax expense (benefit) Income Tax Expense (Benefit) Market Equity Offering [Member] Market Equity Offering [Member] Market equity offering. Proceeds from issuance of common stock Proceeds from Issuance of Common Stock Proceeds from public offering of common stock, net of commissions, underwriting discounts and offering costs Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share Net income from discontinued operations per share attributable to common stockholders - basic Net income from discontinued operations per share attributable to common stockholders - basic Entity Common Stock Shares Outstanding Entity Common Stock, Shares Outstanding Consolidation Items [Axis] Payments to Acquire Property, Plant, and Equipment, Total Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Related Party Partial Payments Related party partial payments. Related party partial payments Number of Shares, Granted Number of shares granted Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Total assets Assets Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Weighted Average Remaining Contractual Term, Options exercisable Milestone prepayment Milestone Prepayment Milestone prepayment. Milestone Prepayment Common stock, shares issued Stock Issued During Period, Shares, New Issues Issuance of common stock, net of issuance costs, shares Stock issued during period, shares, new Issues Number of shares, vested Number of Shares, Vested Number of Shares, Vested Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Earnings Per Share, Diluted [Abstract] Diluted Earnings Per Share: Net loss per share attributable to common stockholders - diluted Earnings Per Share, Diluted Net income per share attributable to common stockholders - diluted Net income per share attributable to common stockholders, diluted Net (loss) income per share attributable to common stockholders - diluted Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of reportable segment net (loss) income Operating Segments [Member] Operating Segments [Member] City Area Code City Area Code Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Net (loss) from discontinued operations, net of tax Net income from discontinuing operations attributable to common stockholders Net income from discontinued operations, net of tax Net income from discontinuing operations attributable to common stockholders CARB-X [Member] Combating Antibiotic Resistant Bacteria Biopharmaceutical Accelerator [Member] Combating Antibiotic Resistant Bacteria Biopharmaceutical Accelerator. Lessee operating lease remaining term of contract. Lessee Operating Lease Remaining Term Of Contract Operating lease, remaining term Variable Lease, Cost Variable lease costs Issuance of common stock under ESPP, value Stock Issued During Period, Value, Employee Stock Purchase Plan Proceeds From Issuance of Common Stock From at the Market Equity Offering Proceeds from issuance of common stock from at the market equity offering. Proceeds from at the market equity offering, net of issuance costs Cambridge massachusetts. Cambridge Massachusetts [Member] Cambridge Massachusetts [Member] Operating Lease, Weighted Average Remaining Lease Term Weighted average remaining lease term Segment Reporting Information [Line Items] Stockholders equity note stock split, conversion ratio Stockholders' Equity Note, Stock Split, Conversion Ratio Disposal Group Name [Axis] Lease, Cost Total lease costs General and Administrative Personnel Expense General and administrative personnel expense. G&A personnel-related (including stock-based compensation) Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Property and equipment, net Property and equipment, net Property, Plant and Equipment, Net Operating Income (Loss) Loss from operations Net loss from continuing operations Non-cash operating lease cost Non Cash Operating Lease Cost Non-cash operating lease cost. Accumulated Deficit [Member] Retained Earnings [Member] Transaction Transaction [Domain] Share-based Payment Arrangement, Noncash Expense, Total Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense Share based compensation expenses Payments of Stock Issuance Costs Issuance costs paid for common stock Issuance costs paid for common stock Issuance costs Unvested Restricted Stock Units [Member] Unvested Restricted Stock Units [Member] Unvested restricted stock units. Operating Lease, Weighted Average Discount Rate, Percent Weighted average incremental borrowing rate Operating lease liabilities, net of current portion Operating Lease, Liability, Noncurrent Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Net cash provided by financing activities Lease, Cost [Table Text Block] Summary of Lease Costs Nonoperating Income (Expense) [Abstract] Other income (expense): Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Percentage of commission on sale of common stock Percentage Of Commission On Sale Of Common Stock Percentage of commission on sale of common stock. Entity Interactive Data Current Entity Interactive Data Current Income Statement Location Statement of Income Location, Balance [Domain] Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Unbilled receivable Unbilled Receivables, Current Payments to Acquire Lease Receivables Lease payment over sublease term Increase Decrease Accounts Receivable Due From SPN - Related Party Increase decrease accounts receivable due from SPN - related party. Accounts receivable due from SPN - related party Entity Tax Identification Number Entity Tax Identification Number Revenues [Abstract] Revenue: Share Price Share Price Local Phone Number Local Phone Number Related Party Transaction Related Party Transaction [Domain] Other Liabilities, Current Related parties, current Short-Term Lease, Cost Short-term lease costs Weighted Average Number of Shares Outstanding, Diluted [Abstract] Denominator: Accrued liabilities due to spn related party. Accrued Liabilities Due to Spn Related Party Total accrued liabilities due to SPN Denominator: Weighted Average Number of Shares Outstanding, Basic [Abstract] Accounting Policies [Abstract] Upfront payment Upfront Payment Upfront Payment Increase Decrease In Accrued Expenses And Other Current And Long Term Liabilities Increase (decrease) in accrued expenses and other current and long-term liabilities. Accrued expenses and other current and long-term liabilities Lessee, Operating Lease, Liability, to be Paid, Year Four 2030 Net Income (Loss) Available to Common Stockholders, Diluted [Abstract] Numerator: Entity Emerging Growth Company Entity Emerging Growth Company Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Weighted Average Remaining Contractual Term, Vested or expected to vest