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Transition Services Agreements [Member] Transition services agreements Restructuring Type [Axis] Restructuring Type Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset Payment to former chief financial officer Severance Costs Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] The amount of leased space terminated from the lease agreement. Rentable Square Feet Terminated From Lease Agreement Rentable space terminated from lease agreement (in square feet) The entire disclosure of information about leases. 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Cybersecurity Risk Management Third Party Engaged [Flag] Documents Incorporated by Reference [Text Block] Documents Incorporated by Reference License and Service [Member] License and Service Effective Income Tax Rate Reconciliation, Percent Income Tax Expense (Benefit), Percent, Total Stock Options Income Tax Jurisdiction [Axis] Income Tax Authority Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Numerator: Option Additional Fee Option additional fee. Option additional fee Share-based compensation expense Disposal Group Including Discontinued Operation Share-Based Compensation Expense Disposal group including discontinued operation, share-based compensation expense. Additional Paid in Capital, Common Stock Paid-in capital Additional Paid in Capital, Common Stock, Beginning Balance Additional Paid in Capital, Common Stock, Ending Balance Provision for income taxes. 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Patent License Agreement [Member] Represents information pertaining to vested stock options. Vested Stock Options [Member] Vested stock options Domestic Tax Jurisdiction [Member] Federal Effective Income Tax Rate Reconciliation [Table] Sales Agreement [Member] Sales agreement. 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Entity Address, Address Line One Entity Address, Address Line One Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of weighted-average assumptions used in estimating the fair value of the stock options Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV Earnings Per Share [Abstract] Net income (loss) per share - basic and diluted Net loss per share: Income Tax, Policy [Policy Text Block] Income taxes Liabilities recorded for indemnification provisions Loss Contingency Accrual Loss Contingency Accrual, Ending Balance Loss Contingency Accrual, Beginning Balance Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] Supplemental Cash Flow Information [Abstract] Foreign Currency Transactions and Translations Policy [Policy Text Block] Foreign Currency Translation Adjustment Statement of Financial Position Location, Balance [Axis] Balance Sheet Location Credit Derivatives Contract Type [Domain] Credit Derivatives Contract Type Operating Lease, Right-of-Use Asset Operating lease right-of-use asset Deferred Tax Assets, Gross Total deferred tax assets Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] Additional Up Front Payment Additional up front payment. Additional up front payment Revenues Disposal Group, Including Discontinued Operation, Revenue Document Type Document Type Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Collaborative Arrangement and Arrangement Other than Collaborative Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Collaborative Arrangement and Arrangement Other than Collaborative Entity Central Index Key Entity Central Index Key Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] End of period Beginning of period Restructuring Reserve, Current End of period Beginning of period Option Fee Option fee Option fee Valuation Approach and Technique [Axis] Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Net increase (decrease) in cash and cash equivalents Subsequent Event Type [Domain] Anti-dilutive securities excluded from the calculation of diluted loss per share Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Disposal Group Classification [Domain] Dilutive securities, effect on basic earnings per share, options and restrictive stock units Dilutive Securities, Effect on Basic Earnings Per Share, Options and Restrictive Stock Units Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) RSAs vest over 42-month period Share-Based Payment Arrangement, Tranche One [Member] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Weighted average remaining contractual term, outstanding at the end of period (in years) Weighted Average Remaining Contractual Term (Years) Defined Contribution Plan Disclosure [Line Items] Defined Contribution Plan Loss on lease termination Gain (Loss) on Termination of Lease Gain (Loss) on Termination of Lease Loss on lease termination Termination Agreement Termination agreement. Termination Agreement [Member] Document Financial Statement Error Correction [Flag] Document Financial Statement Error Correction [Flag] PTC Grant Award PTC Grant Award Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Exercised (in shares) Other Investment Investment [Text Block] Equity Securities without Readily Determinable Fair Value, Impairment Loss, Cumulative Amount Impairment loss on other investments License Agreement [Member] License Agreement [Member] Revenue from license agreement Current Fiscal Year End Date Current Fiscal Year End Date Expense reimbursement Settlement Of Asset Retirement Obligations Through Noncash Payments Amount Reimbursement Settlement Of Asset Retirement Obligations Through Noncash payments amount reimbursement. Amendment Akebia Research License Agreement [Member] Amendment Akebia Research License Agreement [Member] Amendment Akebia Research License Agreement. Entity Address, State or Province Entity Address, State or Province Unvested at the beginning of the period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Unvested the end of the period (in shares) Investment, Name [Domain] Share-Based Payment Arrangement, Plan Modification, Number of Grantees Affected Number of employees impacted Preferred Stock, Shares Outstanding Preferred Stock, Shares Outstanding, Ending Balance Preferred Stock, Shares Outstanding, Beginning Balance Preferred stock, shared outstanding Research and Development Expense, Policy [Policy Text Block] Research and Development Costs Discontinued Operations Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Accounts Receivable Disclosure of accounting policy for related party accounts receivable. Related Party Accounts Receivable Policy Policy [Text Block] Cash commission percentage of gross proceeds of sales of common stock. Cash Commission Percentage Of Gross Proceeds Of Sales Of Common Stock Cash commission of gross proceeds of sales of common stock, percentage Prepaid Rooms Balance Related To Other Assets Prepaid rooms balance related to other assets. Prepaid rooms balance reclassified from other assets Other Information Pertaining to Income Taxes Income tax credit expiration description Amount of research and development transaction support services. Related Party Transaction Research And Development Transaction Support Services Payments to provide research and development transaction support services Represents information pertaining to current workforce reductions of the Company. Current Workforce Reductions [Member] Current workforce reductions Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Schedule of share-based compensation expense Professional Fees Legal and other fees Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Accrued Expenses and Other Current Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Summary of deferred tax assets (liabilities) Interest and Other Income Interest and Other Income, Total Interest income generated from cash and cash equivalents balances Other Comprehensive Income (Loss), Net of Tax [Abstract] Other comprehensive loss: Performance Shares [Member] Performance stock options Subsequent Event [Member] Subsequent Event [Member] Property, Plant and Equipment [Abstract] Total cost and expenses Total cost and expenses Disposal Group, Including Discontinue Operation, Operating Expenses Disposal group including discontinue operation operating expenses. Other Assets, Noncurrent Other assets Other Assets, Noncurrent, Total Antidilutive Securities [Axis] Antidilutive Securities Operating Loss Carryforwards [Line Items] Income Taxes Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage State and Local Jurisdiction [Member] State Related Party Transaction [Axis] Related Party Transaction Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions and Methodology [Abstract] Assumptions used to estimate fair value of stock options Assumptions used to estimate fair value of performance-based stock options Cash and Cash Equivalents [Domain] Cash and Cash Equivalents Represents information pertaining to laboratory equipment. Laboratory Equipment [Member] Laboratory equipment Tisento therapeutics holdings inc. Tisento Therapeutics Holdings Inc Tisento Therapeutics Holdings Inc [Member] Lessor, Lease, Description [Table] Lessor Lease Description [Table] Preferred Stock, Value, Issued Preferred stock, no par value, 100,000,000 shares authorized and 351,037 shares of Series A convertible preferred stock issued and outstanding at December 31, 2025 and 2024 Revenue Recognition, Milestone Method, Revenue Recognized Revenue recognized Threshold period of consecutive trading days over which the average closing price of the Company's share price is considered for measurement of vesting of stock awards. Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Measurement Threshold Number Of Consecutive Trading Days Considered Threshold consecutive trading days, used as a base for measurement of vesting of stock awards Schedule of discontinued operations Disposal Groups, Including Discontinued Operations [Table Text Block] Minimum Minimum [Member] Minimum Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Granted (in dollars per share) Amended Headquarters Lease [Member] Represents information pertaining to an amended direct operating lease effective February 28, 2020 for premises located at 301 Binney Street, Cambridge, MA. Lease Amendment Assets, Current [Abstract] Current assets: Represents services provided to the reporting entity for information systems, accounting, other financial services (such as treasury, audit and purchasing), human resources, legal and facilities. Corporate Costs [Member] Corporate costs Other investment Other Long-Term Investments Represents information pertaining to Paycheck Protection Program Loan. Paycheck Protection Program Loan [Member] PPP Loan Fair Value, Inputs, Level 3 [Member] Level 3 Represents the information pertaining to the agreement under which Company provides services to Ironwood and the amounts earned are recorded as revenue. Development Agreement [Member] Development agreement Fair Value, Assets Measured on Recurring Basis [Table Text Block] Schedule of financial assets measured at fair value on a recurring basis and indicating the level of the fair value hierarchy Liabilities, Current [Abstract] Current liabilities: Subsequent Fees subsequent fees Subsequent fees Restructuring and Related Activities Disclosure [Text Block] Workforce Reduction Other Current Liabilities [Table Text Block] Schedule of accrued expenses and other current liabilities Related Party Transactions [Abstract] Operating Loss Carryforwards Net operating loss carryforwards Operating Loss Carryforwards, Total Accounts receivable Accounts Receivable, after Allowance for Credit Loss, Current Accounts Receivable, after Allowance for Credit Loss, Current, Total Accounts Payable and Accrued Liabilities [Member] Accounts Payable And Accrued Liabilities Commercialization milestone payments. Commercialization Milestone Payments Commercialization milestone payments Commitments and Contingencies Commitments and contingencies Commitments and contingencies (Note 6) Unvested at the beginning of the period (in dollars per share) Unvested restricted common stock at the end of the period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value General and Administrative Expense [Member] General and administrative Auditor Firm ID Forecast [Member] Akebia License Agreement [Member] Akebia license agreement. Akebia Operating Expense [Member] Operating expenses Lessee, Lease, Description [Table] Lessee Lease Description [Table] Change in valuation allowance, Percent Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total Income Tax Examination, Penalties and Interest Accrued Income tax, penalties and interest accrued Income Tax Examination, Penalties and Interest Accrued, Total Geographic Distribution [Axis] Geographic Distribution Cybersecurity Risk Management Positions or Committees Responsible [Text Block] Weighted Average Number of Shares Outstanding, Basic, Total Weighted Average Number of Shares Outstanding, Basic Basic shares Weighted average shares used in calculating net loss per share - basic 2025 Equity Private Placement Two Thousand Twenty Five Equity Private Placement [Member] Two thousand twenty five equity private placement member. Stock Issued During Period Issuance of Common Stock Net of Issuance Cost, Share Stock issued during period issuance of common stock net of nssuance cost, share. 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Unvested Stock Options [Member] Unvested stock options APIC, Share-Based Payment Arrangement, Increase for Cost Recognition APIC, Share-based Payment Arrangement, Increase for Cost Recognition, Total Share-based compensation expense related to issuance of stock options and restricted stock awards Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Change in valuation allowance Deferred tax assets, valuation allowance Equity, Attributable to Parent Ending balance Beginning balance Total stockholders' equity Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Basis of Accounting, Policy [Policy Text Block] Basis of Presentation Statement of Stockholders' Equity [Abstract] SeriesA convertible preferred stock. Series A Convertible Preferred Stock [Member] RSAs vest over 6-month period Share-Based Payment Arrangement, Tranche Two [Member] Type of Restructuring [Domain] Type of Restructuring Investment in Tisento Parent Transfer to Investments Valuation Approach and Technique [Domain] Series A Convertible Preferred Stock Series A Preferred Stock [Member] Tabular disclosure of the useful life of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Schedule Of Property Plant And Equipment Useful Life Table [Text Block] Schedule of Estimated Useful Lives of Property and Equipment Use of Estimates, Policy [Policy Text Block] Use of Estimates Equity Method Investment [Table] Leasehold Improvements [Member] Leasehold improvements Entity Address, Address Line Two Entity Address, Address Line Two Fair Value Disclosures [Text Block] Fair Value of Financial Instruments Sublease termination agreement estimated fair value of rooms. Sublease Termination Agreement Estimated Fair Value Of Rooms Sublease termination agreement estimated fair value of rooms Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Number of Options Debt Instrument, Name [Domain] Debt Instrument, Name Other Assets, Current Other current assets President [Member] Mark Currie Ironwood Pharmaceuticals, Inc., the parent of the reporting entity. The reporting entity was spun off from Ironwood. Ironwood Pharmaceuticals Inc [Member] Ironwood Software and Software Development Costs [Member] Software Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] Equity securities, percentage Outstanding equity securities Equity Method Investment, Ownership Percentage Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block] Business Description and Basis of Presentation [Text Block] Nature of Business Cybersecurity Risk Management Expertise of Management Responsible [Text Block] Restructuring Plan [Axis] Restructuring Plan Related and Nonrelated Parties [Axis] Related Party Restructuring Incurred Cost Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag Restructuring incurred cost statement of income or comprehensive income xxtensible enumeration not disclosed flag. Entity Address, City or Town Entity Address, City or Town Schedule of earnings per share diluted by common class Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table Text Block] Amount received from related party for issuance of shares of common stock. Stock Issued During Period Value Related Party Investment in common stock by related party Security Exchange Name Security Exchange Name Property and equipment. gross Property, Plant and Equipment, Gross Property, Plant and Equipment, Gross, Total Property, Plant and Equipment, Gross, Beginning Balance Property, Plant and Equipment, Gross, Ending Balance Investments, All Other Investments [Abstract] Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Total Pretax loss Antidilutive Securities, Name [Domain] Antidilutive Securities, Name Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent Foreign tax effects, Percent Issuance costs paid for private placement Issuance Costs Paid for Private Placement Issuance costs paid for private placement. Deferred Tax Assets, Goodwill and Intangible Assets Intangibles Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Total cash, cash equivalents and restricted cash Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Statistical Measurement [Domain] Statistical Measurement Assets, Current Total current assets Share-Based Payment Arrangement, Expense Share-based compensation Document Period End Date Document Period End Date Title and Position [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV ICFR Auditor Attestation Flag Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Exercisable (in shares) Carrying value as of the balance sheet date of obligations incurred through that date and payable for research and development. Used to reflect the current portion of liabilities. Accrued Research And Development Current Accrued research and development costs Gain Loss On Sale Of Property Plant Equipment Gain (Loss) on Disposition of Property Plant Equipment Loss on Disposition of Property Plant Equipment Net loss on disposal of property and equipment Gain (Loss) on Disposition of Property Plant Equipment, Total Statement of Financial Position [Abstract] Restricted Stock Units (RSUs) [Member] Restricted Stock Units Licensed room. Licensed Room [Member] Licensed Room Vesting [Axis] Class of Stock [Axis] Cybersecurity Risk Management, Strategy, and Governance [Line Items] Gain from insurance recovery Gain on Business Interruption Insurance Recovery Expected option term (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Foreign tax effects Adjustments Restructuring Reserve, Accrual Adjustment Research and development Disposal Group, Including Discontinued Operation, Research and Development Expense Disposal group including discontinued operation research and development expense. Disposal Groups, Including Discontinued Operations [Table] Restricted Stock Awards Restricted Stock [Member] Restricted Stock Weighted Average Number of Shares Outstanding, Diluted, Total Weighted Average Number of Shares Outstanding, Diluted Diluted shares Weighted average shares used in calculating net loss per share - Diluted Securities Act File Number Entity File Number Disposal Group, Including Discontinued Operation, Classified Balance Sheet Disclosures [Abstract] Cover [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Forfeited (in shares) Stock Issued During Period Issuance of Common Stock Net of Issuance Cost, Value Stock issued during period issuance of common stock net of issuance cost, value Issuance of common stock - private placement, net of issuance cost Scenario [Domain] Sale of Stock [Domain] Sale of Stock General and Administrative Expense General and administrative General and Administrative Expense, Total Workforce Reduction Workforce reduction plan 2020. Workforce Reduction Plan2020 [Member] Summary of RSA activity Nonvested Restricted Stock Shares Activity [Table Text Block] Cyclerion Securities Corporation. Cyclerion Securities Corporation [Member] Cyclerion Securities Corporation Number of shares vested Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested, Number of Shares Subsequent Event [Table] Earnings Per Share, Diluted, by Common Class, Including Two-Class Method [Table] Operating Lease, Expense Lease expense Restructuring Charges Charges Restructuring Charges, Total Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract] Weighted Average Remaining Contractual Term (years) New Accounting Pronouncements, Policy [Policy Text Block] Recently Issued/Adopted Accounting Pronouncements Treasury rate Treasury Rate [Member] Treasury rate. Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Vesting period Income (Loss) from Continuing Operations before Income Taxes, Domestic U.S. Domestic Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] Term of lease Lessee, Operating Lease, Term of Contract Term of lease Cyclerion Cyclerion License Agreement [Member] Cyclerion license agreement. Common Stock, Shares, Outstanding Ending balance (in shares) Beginning balance (in shares) Common stock, shares outstanding Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] Cybersecurity Risk Management Processes Integrated [Flag] Document Transition Report Document Transition Report Operating expenses Operating Expenses Total cost and expenses Research and development expense Research and Development Expense Research and development Research and Development Expense, Total Asset Impairment Charges Asset Impairment Charges, Total Impairment loss Revenue Recognition and Deferred Revenue [Abstract] Comprehensive loss Comprehensive loss Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Statement of Cash Flows [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Weighted-Average Grant Date Fair Value Akebia Research License Agreement [Member] Akebia Research License Agreement [Member] Akebia Research License Agreement Member. Stock Issued During Period, Value, New Issues Issuance of common stock equity private placement and ATM Issuance of common stock - ATM Share-Based Payment Arrangement, Option, Activity [Table Text Block] Schedule of stock option activity Schedule of transaction consideration received from the sale of the Transferred Assets Schedule of Gain (Loss) on Securitizations or Asset-Backed Financing Arrangements of Financial Assets Accounted for as Sale [Table Text Block] Finite-Lived Intangible Assets [Line Items] Finite Lived Intangible Assets [Line Items] Earnings Per Share [Text Block] Loss per share Common stock shares issued Shares, Issued Discontinued Operations and Disposal Groups [Abstract] Discontinued Operations, Disposed of by Sale [Member] Discontinued Operations, Disposed of by Sale [Member] Cybersecurity Risk Management Processes Integrated [Text Block] Net loss Net loss Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Aggregate Intrinsic Value, Outstanding Aggregate intrinsic value, outstanding at the end of period Net assets sold Consideration Received For Beneficial Interest Obtained For Transferring Financial Asset Net Consideration received for beneficial interest obtained for transferring financial asset net. Interest income Other Nonoperating Income Additional milestone cash payment Payment Of Cash Milestone Payment of cash milestone. Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Expected dividend yield Net proceeds from disposal of discontinued operations Proceeds from Divestiture of Businesses Assets [Abstract] ASSETS License Agreement [Abstract] License agreement abstract. Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Weighted average risk-free interest rate Purchase Agreement [Member] Purchase agreement. Revenue from purchase agreement Construction in Progress [Member] Construction in progress Maximum amount of Aggregate initial offering price. Maximum Amount Of Aggregate Initial Offering Price Maximum amount of Aggregate initial offering price Maximum amount of aggregate initial offering price Restructuring and Related Activities [Abstract] Document Fiscal Year Focus Document Fiscal Year Focus Vested upon grant Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested Upon Grant Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested Upon Grant Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] CASH FLOWS FROM INVESTING ACTIVITIES: Retirement Benefits [Abstract] Accounts Payable, Current Accounts payable Accounts Payable, Current, Total Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested in Period, Fair Value Total grant date fair value of options granted Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Schedule of Components of Net Income Loss Before Income Tax Expense Research and Development Expense [Member] Research and development Geographic Distribution Geographic Distribution [Domain] Defined Contribution Plan, Employer Matching Contribution, Percent of Match Matching contribution (as a percent of employee's contributions) Deferred Revenue Deferred Revenue, Total Restructuring Cost and Reserve [Line Items] Restructuring Cost And Reserve [Line Items] Terminal decline rate Terminal Decline Rate [Member] Terminal decline rate. Market-based Stock Options [Member] Market-based stock options. Market-based Stock Options Fair Value Disclosures [Abstract] Commitments and Contingencies Disclosure [Abstract] Effective Income Tax Rate Reconciliation, Tax Credit, Amount Tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Amount, Total Net assets percentage Investment Owned, Net Assets, Percentage Effective Income Tax Rate Reconciliation [Line Items] Debt Instrument [Axis] Debt Instrument Share-Based Payment Arrangement [Abstract] Unrecognized share-based compensation expense Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total Sale of Stock [Axis] Sale of Stock License Agreements [Text Block] The entire disclosure for license agreements. License and Option Agreement Total revenues Revenues Revenues Total revenues Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Net cash provided by investing activities Private Placement Private Placement [Member] Title of 12(b) Security Title of 12(b) Security Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Cancelled or forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Forfeited (in dollars per share) Money Market Funds [Member] Money market funds Related and Nonrelated Parties [Domain] Related Party Income Tax Disclosure [Text Block] Income Taxes Collaborative Arrangement and Arrangement Other than Collaborative [Table] Patents [Member] Patents Consolidated Entities [Axis] Consolidated Entities Restructuring Plan Restructuring Plan [Domain] Weighted average investment Weighted Average Investment [Member] Weighted average investment. Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities: Property, Plant and Equipment [Table Text Block] Schedule of property and equipment, net Weighted average exercise price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Outstanding at end of the year (in dollars per share) Outstanding at beginning of the year (in dollars per share) Income Tax Disclosure [Abstract] Fair Value, Recurring and Nonrecurring [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Accrued Liabilities and Other Liabilities [Abstract] Unrecognized Tax Benefits Unrecognized tax benefits Unrecognized Tax Benefits, Beginning Balance Unrecognized Tax Benefits, Ending Balance Additional Paid-in Capital [Member] Paid-in capital Represents the information pertaining to Cyclerion GmbH. Cyclerion Gmbh [Member] Cyclerion GmbH Measurement Frequency [Domain] Measurement Frequency Statement of Income Location, Balance [Axis] Income Statement Location Trading Symbol Trading Symbol Intangible Asset, Finite-Lived [Table] Schedule Of Finite Lived Intangible Assets [Table] Property, Plant and Equipment Disclosure [Text Block] Property and Equipment Related Party Transaction [Table] Schedule Of Related Party Transactions By Related Party [Table] October 2022 current workforce reductions. October 2022 Current Workforce Reductions [Member] October 2022 Current Workforce Reduction Non-deductible items, Percent Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent, Total Director Director [Member] Gain on disposal of discontinued operations Gross transaction consideration from the sale Gain on disposal of discontinued operations Gross transaction consideration from the sale Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax Subsequent Event Type [Axis] Employee-related Liabilities, Current Employee-related Liabilities, Current, Total Employee compensation Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] CASH FLOWS FROM FINANCING ACTIVITIES: Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Expected option term (in years) Fair Value, Recurring [Member] Recurring Entity Ex Transition Period Entity Ex Transition Period Impairment loss on other investments Other than Temporary Impairment Losses, Investments Equity Components [Axis] Equity Components Nonoperating Income (Expense) Total other income, net Interest income Equity Component [Domain] Equity Component Asset Class [Axis] Lessor, Lease, Description [Line Items] Sublease as lessor Document Annual Report Document Annual Report Increase (Decrease) in Other Current Assets Other current assets Vesting of restricted stock awards (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures, Total IPO [Member] IPO Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction, Total Gain on disposal of discontinued operations Gain on disposal of discontinued operations Gain (Loss) On Disposal Of Discontinued Operations Gain (loss) on disposal of discontinued operations. Maximum Maximum [Member] Statistical Measurement [Axis] Statistical Measurement Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Exercised (in dollars per share) Prepaid Expense, Current Prepaid expenses Prepaid Expense, Current, Total Increase (Decrease) in Other Accounts Payable and Accrued Liabilities Accrued expenses and other current liabilities Common Stock, Value, Issued Common Stock, Value, Issued, Total Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Ending Balance Common stock, no par value, 400,000,000 shares authorized at December 31, 2025 and 2024; 3,925,314 and 2,710,096 shares issued at December 31, 2025 and 2024, respectively; 3,821,236 and 2,545,922 shares outstanding at December 31, 2025 and 2024, respectively Property, Plant and Equipment [Member] Property, plant and equipment Property and Equipment Transaction costs associated with sale of Transferred Assets Transaction Costs Sale of Transferred Assets Transaction costs sale of transferred assets. Transaction costs associated with sale of transferred assets Allowable Expenses on Grant Revenue Allowable Expenses on Grant Revenue Cash and Cash Equivalents [Abstract] Cash equivalents: Ending balance Equity, Including Portion Attributable to Noncontrolling Interest Equity, Including Portion Attributable to Noncontrolling Interest, Total Beginning balance Option Agreement [Member] Option Agreement. Revenue from option agreement Deferred Tax Assets, Operating Loss Carryforwards Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards, Total Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block] Fair value of outstanding equity securities Available-for-Sale Securities, Continuous Unrealized Loss Position, Fair Value 1 Available-for-sale securities, continuous unrealized loss position, fair value 1. Entity Public Float Entity Public Float Closing costs associated with sale of Transferred Assets Closing Cost Sale of Transferred Assets Closing cost sale of transferred assets. Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected stock price volatility Preferred Stock, Shares Authorized Preferred stock, shares authorized Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class Related Party Transaction [Line Items] Related Party Transaction [Line Items] Grant Revenue Revenue from Contract with Customer [Text Block] Entity Registrant Name Entity Registrant Name Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Accrued interest or penalties Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total Entity Voluntary Filers Entity Voluntary Filers Payments to Acquire in Process Research and Development Payment of additional development materials Other comprehensive loss: Other comprehensive loss: Statement of Other Comprehensive Income [Abstract] Subsequent Events [Abstract] Cybersecurity Risk Management Positions or Committees Responsible [Flag] Consolidated Entities [Domain] Consolidated Entities Income Tax Expense (Benefit), Total Income Tax Expense (Benefit) Income Tax Expense (Benefit), Total Measurement Frequency [Axis] Measurement Frequency Proceeds from Issuance of Common Stock Proceeds from private placement Proceeds from issuance of common stock Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Share-based Compensation Plans Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Disposal Group Classification [Axis] Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Property, Plant and Equipment, Other Types [Member] Property, Plant and Equipment, Other Types Represents the other related party transactions. Other Related Party Transactions [Member] Other Related Party Transactions The increase (decrease) during the reporting period in accrued research and development expense. Increase Decrease In Accrued Research And Development Accrued research and development costs Payments for Restructuring Amount paid Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment, Total Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Granted (in shares) Assets Total assets Property, Plant and Equipment [Table] Schedule Of Property Plant And Equipment [Table] 2023 Further Workforce Deductions 2023 Further Workforce Deductions [Member] 2023 Further workforce deductions member Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Weighted average remaining contractual term, exercisable at the end of period (in years) Weighted Average Remaining Contractual Term (Years) Income Statement [Abstract] Restructuring Cost [Table] Schedule Of Restructuring And Related Costs [Table] Fair Value of Financial Instruments, Policy [Policy Text Block] Fair Value of Investment Instruments Exercise period Debt Instruments, Options, Exercise Period Debt instruments, options, exercise period. Workforce Reductions Workforce Reductions [Member] Workforce reductions. Stock Issued During Period, Shares, New Issues Issuance of common stock equity private placement and ATM (in shares) Issuance of common stock - ATM (in shares) Sale of shares Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Vested (in shares) Variable Interest Entities Consolidation, Variable Interest Entity, Policy [Policy Text Block] Earnings Per Share, Diluted [Abstract] Net loss per share Gain Loss from Settlement of Account Payable Gain (loss) from settlement of account payable. Gain from settlement of account payable Gain from settlement of account payable Disclosure of accounting policy for interest and other income. Interest And Other Income Policy Policy [Text Block] Interest and Other Income, Net Earnings Per Share, Diluted Total loss per share Net loss per share - Diluted Increase (Decrease) in Accounts Payable, Trade Accounts payable Title and Position [Domain] Credit Derivatives Contract Type [Axis] Credit Derivatives Contract Type City Area Code City Area Code Sublease termination agreement. Sublease Termination Agreement [Member] Sublease Termination Agreement Auditor Name Second amended headquarters lease. Second Amended Headquarters Lease [Member] Second Lease Amendment Tax credit carryforwards Deferred Tax Assets, Tax Credit Carryforwards Deferred Tax Assets, Tax Credit Carryforwards, Total Up Front Payment Received Up Front Payment Received. Up front payment received Represents information pertaining to transactions recorded in interest and other income. Interest And Other Income [Member] Interest and other income, net Akebia Material Purchase Agreement [Member] Akebia Material Purchase Agreement. Akebia Material Purchase Agreement [Member] Cash and Cash Equivalents, Policy [Policy Text Block] Cash and Cash Equivalents Property, Plant and Equipment, Net Property and equipment, net Property and equipment, net Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net, Ending Balance Operating Income (Loss) Loss from operations Retained Earnings [Member] Accumulated deflicit Cash and Cash Equivalents [Axis] Cash and Cash Equivalents Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax Net gain from discontinued operations Net gain from discontinued operations Share-Based Payment Arrangement, Noncash Expense Share-based compensation expense Share-based Payment Arrangement, Noncash Expense, Total Consideration on acquisition transferred Cash consideration transferrred Asset Acquisition, Consideration Transferred Asset Acquisition, Consideration Transferred, Total Commissions paid Payments of Stock Issuance Costs Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract] Restructuring and Related Cost, Number of Positions Eliminated Reduction in workforce, number of employees Fair Value, Inputs, Level 1 [Member] Level 1 Class of Stock [Line Items] Nature of Business Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Net cash provided by financing activities Auditor Location Tabular disclosure of undiscounted cash outflows (inflows) for operating lease payments to be made as lessee and the related payments to be received as lessor from the sublease of a portion of the leased space. Leases Maturity Of Operating Lease Payments As Lessee And Maturity Of Operating Lease Payments To Be Received As Lessor Table [Text Block] Future minimum lease payments under non-cancelable operating leases under ASC 842 Nonoperating Income (Expense) [Abstract] Other income, net The maximum amount per employee of the employer's matching contributions. Defined Contribution Plan Employer Matching Contribution Maximum Maximum amount of employer matching contribution Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Grant [Member] The tabular disclosure of supplemental cash flow information related to leases. Lessee Operating Lease Supplemental Cash Flow Information Table [Text Block] Schedule of supplemental cash flow information related to leases Income Tax Jurisdiction [Domain] Income Tax Authority Entity Interactive Data Current Entity Interactive Data Current Statement of Income Location, Balance [Domain] Income Statement Location Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: General and administrative Disposal Group, Including Discontinued Operation, General and Administrative Expense Entity Tax Identification Number Entity Tax Identification Number Revenues: At The Market Offering. At The Market Offering [Member] ATM Offering Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Effect of exchange rate changes on cash and cash equivalents Local Phone Number Local Phone Number Related Party Transaction [Domain] Related Party Transaction Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount Unrecognized share-based compensation expense Disclosure of accounting policy for patent costs. Patent Costs Policy [Text Block] Patent Costs Restructuring Costs Restructuring costs Restructuring Costs, Total Paycheck Protection Program Member. Paycheck Protection Program [Member] PPP Loan Accounting Policies [Abstract] Disaggregation of Revenue [Line Items] Other Sundry Liabilities, Current Other Revenue from Contract with Customer, Excluding Assessed Tax Revenue from related party Revenue from Contract with Customer, Excluding Assessed Tax, Total Class of Stock [Domain] Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Expected period to recognize the expense Office Equipment [Member] Computer and office equipment Accrued Professional Fees, Current Professional fees Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Percent of compensation eligible employees may elect to contribute Represents information pertaining to a direct operating lease for existing premises located at 301 Binney Street, Cambridge, MA. Headquarters Lease [Member] Head Lease Stock, Class of Stock [Table] Schedule Of Stock By Class [Table] Entity Emerging Growth Company Entity Emerging Growth Company Area of Land Rented space (in square feet) Loss from operations Disposal Group, Including Discontinued Operation, Operating Income (Loss)