Class of Stock [Axis]
Series A Convertible Preferred Stock [Member]
Equity Components [Axis]
Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Statistical Measurement [Axis]
Minimum [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Axis]
Merger Agreement [Member]
Ownership [Axis]
Pre-Merger Cullgen Inc [Member]
Pre-Merger Pulmatrix Inc [Member]
Pulmatrix Inc [Member]
Cullgen Inc [Member]
Concentration Risk Benchmark [Axis]
Revenue from Contract with Customer Benchmark [Member]
Concentration Risk Type [Axis]
Customer Concentration Risk [Member]
Customer [Axis]
Two Customers [Member]
Pledging Purpose [Axis]
Letter of Credit [Member]
Cipla Agreement [Member]
Legal Entity [Axis]
Cipla Technologies LLC [Member]
Product and Service [Axis]
Research and Development Service [Member]
Irrevocable License [Member]
Lease Assignment Agreement [Member]
H.C.Wainwright and Co., LLC [Member]
Sale Agreement [Member]
Maximum [Member]
Sale of Stock [Axis]
ATM Offering [Member]
Warrant [Member]
Award Type [Axis]
Warrant One [Member]
Warrant Two [Member]
Warrant Three [Member]
Subsequent Event Type [Axis]
Subsequent Event [Member]
Derivative Instrument [Axis]
Equity Option [Member]
Location, Statement of Income, Balance [Axis]
Tax Period [Axis]
Tax Year 2026 to 2037 [Member]
Indefinite [Member]
Income Tax Jurisdiction [Axis]
Income Tax Jurisdiction, Domestic State and Local [Member]
Tax Credit Carryforward [Axis]
Research Tax Credit Carryforward [Member]
Antidilutive Securities [Axis]
Options to Purchase Common Stock [Member]
Warrants to Purchase Common Stock [Member]
Cover [Abstract]
Document Type
Amendment Flag
Amendment Description
Document Registration Statement
Document Annual Report
Document Quarterly Report
Document Transition Report
Document Shell Company Report
Document Shell Company Event Date
Document Period Start Date
Document Period End Date
Document Fiscal Period Focus
Document Fiscal Year Focus
Current Fiscal Year End Date
Entity File Number
Entity Registrant Name
Entity Central Index Key
Entity Primary SIC Number
Entity Tax Identification Number
Entity Incorporation, State or Country Code
Entity Address, Address Line One
Entity Address, Address Line Two
Entity Address, Address Line Three
Entity Address, City or Town
Entity Address, State or Province
Entity Address, Country
Entity Address, Postal Zip Code
Country Region
City Area Code
Local Phone Number
Extension
Written Communications
Soliciting Material
Pre-commencement Tender Offer
Pre-commencement Issuer Tender Offer
Title of 12(b) Security
No Trading Symbol Flag
Trading Symbol
Security Exchange Name
Title of 12(g) Security
Security Reporting Obligation
Annual Information Form
Audited Annual Financial Statements
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
Elected Not To Use the Extended Transition Period
Document Accounting Standard
Other Reporting Standard Item Number
Entity Shell Company
Entity Public Float
Entity Bankruptcy Proceedings, Reporting Current
Entity Common Stock, Shares Outstanding
Documents Incorporated by Reference
ICFR Auditor Attestation Flag
Document Financial Statement Error Correction [Flag]
Entity listing par value per share
Auditor Firm ID
Auditor Opinion [Text Block]
Auditor Name
Auditor Location
Statement of Financial Position [Abstract]
Assets
Current assets:
Cash and cash equivalents
Prepaid expenses and other current assets
Total current assets
Long-term restricted cash
Other long-term assets
Total assets
Liabilities and stockholders’ equity
Current liabilities:
Accounts payable
Accrued expenses and other current liabilities
Total current liabilities
Warrant liability
Total liabilities
Commitments and contingencies (Note 9)
Stockholders’ equity:
Preferred stock, $0.0001 par value - 500,000 shares authorized; 6,746 shares designated Series A convertible preferred stock; no shares issued and outstanding at December 31, 2025 and 2024
Common stock, $0.0001 par value - 200,000,000 shares authorized; 3,652,285 shares issued and outstanding at December 31, 2025 and 2024
Additional paid-in capital
Accumulated deficit
Total stockholders’ equity
Total liabilities and stockholders’ equity
Statement [Table]
Statement [Line Items]
Preferred stock, par value
Preferred stock, shares authorized
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value
Common stock, shares authorized
Common stock, shares issued
Common stock, shares outstanding
Income Statement [Abstract]
Revenues
Operating expenses:
Research and development
General and administrative
Loss on MannKind Transaction
Total operating expenses
Loss from operations
Other income (expense):
Interest income
Fair value adjustment of warrants
Other expense, net
Total other income (expense), net
Net loss
Net loss per share attributable to common stockholders - basic
Net loss per share attributable to common stockholders - diluted
Weighted average common shares outstanding - basic
Weighted average common shares outstanding - diluted
Balance
Balance, shares
Stock-based compensation
Net loss
Balance
Balance, shares
Statement of Cash Flows [Abstract]
Cash flows from operating activities:
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization
Amortization of operating lease right-of-use asset
Stock-based compensation
Loss on disposals
Fair value adjustment of warrants
Changes in operating assets and liabilities:
Accounts receivable
Prepaid expenses and other current assets
Other long-term assets
Accounts payable
Accrued expenses and other current liabilities
Operating lease liability
Deferred revenue
Net cash used in operating activities
Cash flows from investing activities:
Purchases of property and equipment
Net cash used in investing activities
Net decrease in cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted cash - beginning of period
Cash, cash equivalents and restricted cash - end of period
Reconciliation of cash, cash equivalents and restricted cash to the consolidated balance sheets:
Cash and cash equivalents
Long-term restricted cash
Supplemental disclosures of non-cash investing and financing information:
Reduction of operating lease right-of-use asset and lease liability upon lease modification
Pay vs Performance Disclosure [Table]
Executive Category [Axis]
Individual [Axis]
Adjustment to Compensation [Axis]
Measure [Axis]
Pay vs Performance Disclosure, Table
Company Selected Measure Name
Named Executive Officers, Footnote
Peer Group Issuers, Footnote
Changed Peer Group, Footnote
PEO Total Compensation Amount
PEO Actually Paid Compensation Amount
Adjustment To PEO Compensation, Footnote
Non-PEO NEO Average Total Compensation Amount
Non-PEO NEO Average Compensation Actually Paid Amount
Adjustment to Non-PEO NEO Compensation Footnote
Equity Valuation Assumption Difference, Footnote
Compensation Actually Paid vs. Total Shareholder Return
Compensation Actually Paid vs. Net Income
Compensation Actually Paid vs. Company Selected Measure
Total Shareholder Return Vs Peer Group
Compensation Actually Paid vs. Other Measure
Tabular List, Table
Total Shareholder Return Amount
Peer Group Total Shareholder Return Amount
Net Income (Loss)
Company Selected Measure Amount
Other Performance Measure, Amount
Adjustment to Compensation, Amount
PEO Name
Name
Non-GAAP Measure Description
Additional 402(v) Disclosure
Pension Benefits Adjustments, Footnote
Equity Awards Adjustments, Footnote
Erroneously Awarded Compensation Recovery [Table]
Restatement Determination Date [Axis]
Restatement Determination Date
Aggregate Erroneous Compensation Amount
Erroneous Compensation Analysis
Stock Price or TSR Estimation Method
Outstanding Aggregate Erroneous Compensation Amount
Aggregate Erroneous Compensation Not Yet Determined
Name
Forgone Recovery due to Expense of Enforcement, Amount
Forgone Recovery due to Violation of Home Country Law, Amount
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Forgone Recovery, Explanation of Impracticability
Name
Compensation Amount
Restatement does not require Recovery
Awards Close in Time to MNPI Disclosures [Table]
Award Timing MNPI Disclosure
Award Timing Method
Award Timing Predetermined
Award Timing MNPI Considered
Award Timing, How MNPI Considered
MNPI Disclosure Timed for Compensation Value
Awards Close in Time to MNPI Disclosures, Table
Name
Underlying Securities
Exercise Price
Fair Value as of Grant Date
Underlying Security Market Price Change
Trading Arrangements, by Individual [Table]
Trading Arrangement [Axis]
Material Terms of Trading Arrangement
Name
Title
Rule 10b5-1 Arrangement Adopted
Non-Rule 10b5-1 Arrangement Adopted
Adoption Date
Rule 10b5-1 Arrangement Terminated
Non-Rule 10b5-1 Arrangement Terminated
Termination Date
Expiration Date
Arrangement Duration
Aggregate Available
Insider Trading Policies and Procedures [Line Items]
Insider Trading Policies and Procedures Adopted
Insider Trading Policies and Procedures Not Adopted
Cybersecurity Risk Management, Strategy, and Governance [Abstract]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]
Cybersecurity Risk Management Processes Integrated [Flag]
Cybersecurity Risk Management Processes Integrated [Text Block]
Cybersecurity Risk Management Third Party Engaged [Flag]
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block]
Cybersecurity Risk Board of Directors Oversight [Text Block]
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]
Cybersecurity Risk Role of Management [Text Block]
Cybersecurity Risk Management Positions or Committees Responsible [Flag]
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]
Material Cybersecurity Incident [Abstract]
Material Cybersecurity Incident Nature [Text Block]
Material Cybersecurity Incident Scope [Text Block]
Material Cybersecurity Incident Timing [Text Block]
Material Cybersecurity Incident Material Impact or Reasonably Likely Material Impact [Text Block]
Material Cybersecurity Incident Information Not Available or Undetermined [Text Block]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of the Business
Accounting Policies [Abstract]
Summary of Significant Accounting Policies and Recent Accounting Standards
Prepaid Expenses And Other Current Assets
Prepaid Expenses and Other Current Assets
Payables and Accruals [Abstract]
Accrued Expenses and Other Current Liabilities
Commitments and Contingencies Disclosure [Abstract]
Significant Agreements
Equity [Abstract]
Common Stock
Warrants
Warrants
Share-Based Payment Arrangement [Abstract]
Stock-based Compensation
Commitments and Contingencies
Leases
Leases
Income Tax Disclosure [Abstract]
Income Taxes
Earnings Per Share [Abstract]
Net Loss Per Share
Segment Reporting [Abstract]
Segment Reporting
Subsequent Events [Abstract]
Subsequent Events
Principles of Consolidation
Risks, Uncertainties and Liquidity
Use of Estimates
Concentrations of Credit Risk
Cash, Cash Equivalents and Restricted Cash
Fair Value of Financial Instruments
Leases
Revenue Recognition
Research and Development Costs
Stock-based Compensation
Common Stock Warrants
Basic and Diluted Net Loss Per Share
Income Taxes
Recent Accounting Pronouncements
Schedule of Prepaid Expenses and Other Current Assets
Schedule of Accrued Expenses and Other Current Liabilities
Schedule of Rollforward of Common Stock Warrants Outstanding
Schedule of Warrants Outstanding and Exercisable
Schedule of Stock Option Activity
Schedule of Stock-based Compensation Expenses
Schedule of Components of Lease Expenses
Schedule of Reconciliation of U.S Federal Statutory Tax and Effective Amount and Rate
Schedule of Reconciliation of Federal Statutory Income Tax Rate To Effective Income Tax Rate
Schedule of Components of Deferred Tax Assets
Schedule of Roll-forward of Gross Uncertain Tax Positions
Schedule of Computation of Anti-Dilutive Weighted-Average Shares Outstanding
Collaborative Arrangement and Arrangement Other than Collaborative [Table]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Cash dividend
Price per share
Minority interest ownership percentage by noncontrolling owners
Minority interest ownership percentage by parent
Valuation amount
Enterprise value
Cash
Nature of Operation, Product Information, Concentration of Risk [Table]
Product Information [Line Items]
Concentration risk percentage
Deposit money market
Restricted cash
Schedule Of Prepaid Expenses And Other Current Assets
Software and hosting costs
Insurance
Other
Total prepaid expenses and other current assets
Wages and incentives
Legal and patents
Other
Total accrued expenses and other current liabilities
Product Liability Contingency [Table]
Product Liability Contingency [Line Items]
Non-refundable upfront payment received
Agreement description
Transaction cost
Revenue
Decrease in right-of-use asset
Disposal group write-down of carrying value
Subsidiary or Equity Method Investee, Sale of Stock, Type [Table]
Subsidiary, Sale of Stock [Line Items]
Sale of stock, consideration received on transaction
Description of stock transaction
Public float
Commission percentage
Number of shares issued in transaction
Class of Warrant or Right [Table]
Class of Warrant or Right [Line Items]
Number of Common Warrants, Outstanding, Beginning Balance
Weighted Average Exercise Price, Outstanding, Beginning balance
Number of Common Warrants, Expired
Weighted Average Exercise Price, Expired
Number of Common Warrants, Outstanding, Ending Balance
Weighted Average Exercise Price, Outstanding, Ending balance
Weighted Average Remaining Contractual Term (Years), Outstanding
Aggregate Intrinsic Value, Outstanding, Ending balance
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Warrants, Issue Date
Warrants, Adjusted Exercise Price
Warrants, Expiration Date
Number of Shares Underlying Warrants
Warrants to purchase common stock expired
Warrants fair value
Weighted-average exercise price
Offsetting Assets [Table]
Offsetting Assets [Line Items]
Number of Options, Outstanding, Balance
Weighted Average Exercise Price, Outstanding, Balance
Aggregate Intrinsic Value, Balance
Number of Options, Forfeited or expired
Weighted Average Exercise Price, Forfeited or expired
Number of Options, Outstanding, Balance
Weighted Average Exercise Price, Outstanding, Balance
Weighted Average Remaining Contractual Term (Years), Outstanding
Aggregate Intrinsic Value, Balance
Number of Options, Exercisable
Weighted Average Exercise Price, Outstanding, Exercisable
Weighted Average Remaining Contractual Term (Years), Exercisable
Aggregate Intrinsic Value, Exercisable
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table]
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense
Schedule Of Components Of Lease Expenses
Lease cost
Fixed lease cost
Variable lease cost
Total lease cost
Cash paid for amounts included in the measurement of lease liabilities
Weighted-average discount rate - operating leases
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
U.S federal statutory tax rate
Changes in valuation allowances
Nontaxable or nondeductible items : Stock-based compensation
Nontaxable or nondeductible items : Other
Provision for (benefit from) taxes
Effective Income Tax Rate Reconciliation, Percent [Abstract]
U.S federal statutory tax rate, effective percent
Changes in valuation allowance, percent
Nontaxable or nondeductible items : Stock-based compensation, percent
Nontaxable or nondeductible items : Other, percent
Effective tax rate, percent
Income tax computed at federal statutory tax rate
State taxes, net of federal benefit
Research and development credits
Expiration of stock options
Permanent differences
Limitations on credits and net operating losses
Change in valuation allowance
Net operating loss carryforwards
Capitalized research and experimental costs
Research and development credit carryforwards
Capitalized start-up expenses
Stock-based compensation
Other
Total deferred tax assets
Valuation allowance
Net deferred tax assets
Gross uncertain tax positions, Beginning balance
Additions for current year tax positions
Gross uncertain tax positions, Ending balance
Operating Loss Carryforwards [Table]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards
Net operating loss carryforwards expiration
State net operating loss carryforwards
Research and development tax credits
Tax credit carryforwards expiration
Increase in valuation allowance
Antidilutive Security, Excluded EPS Calculation [Table]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average shares outstanding
No Insider Trading Flag.
Warrant liability.
Series A Convertible Preferred Stock [Member]
Reduction of operating lease rightofuse asset and lease liability upon lease modification.
Merger Agreement [Member]
Pre-Merger Cullgen Inc [Member]
Pre-Merger Pulmatrix Inc [Member]
Exchange ratio valuation amount.
Pulmatrix Inc [Member]
Enterprise value.
Cullgen Inc [Member]
Risk And Uncertainties [Policy Text Block]
Common Stock Warrants [Policy Text Block]
Disclosure of prepaid expenses and other current assets [Text Block]
Prepaid software and hosting costs.
Cipla Agreement [Member]
Cipla Technologies LLC [Member]
Agreement description.
Aggregate transaction price
Research and Development Service [Member]
Irrevocable License [Member]
Increase decrease in right of use asset.
Lease Assignment Agreement [Member]
H.C.Wainwright and Co., LLC [Member].
Sale Agreement [Member]
Entities public float.
ATM Offering [Member]
Commission percentage.
Disclosure of warrants [Text Block]
Share based compensation arrangement by share based payment award equity instruments non options outstanding weighted average exercise price.
Share based compensation arrangement by share based payment award equity instruments non options expired weighted average exercise price.
Share based compensation arrangement by share based payment award equity instruments non options outstanding weighted average remaining contractual term.
Share based compensation arrangement by share based payment award equity instruments non options outstanding aggregate intrinsic value.
Warrant One [Member]
Warrant Two [Member]
Warrant Three [Member]
Effective income tax rate reconciliation nondeductible expense permanent differences.
Effective income tax reconciliation limitations on credit and net operating losses.
Deferred tax assets deferred expense capitalized research and development.
Deferred tax assets deferred expense capitalized startup.
Tax Year 2026 to 2037 [Member]
Indefinite [Member]
Options to Purchase Common Stock [Member]
Warrants to Purchase Common Stock [Member]
Two Customers [Member]
Assets, Current
Assets [Default Label]
Liabilities, Current
Liabilities
Equity, Attributable to Parent
Liabilities and Equity
Gain (Loss) on Termination of Lease
Operating Expenses
Operating Income (Loss)
Nonoperating Income (Expense)
Shares, Outstanding
Share-Based Payment Arrangement, Noncash Expense
Gain (Loss) on Disposition of Property Plant Equipment
Increase (Decrease) in Accounts Receivable
Increase (Decrease) in Prepaid Expense and Other Assets
Increase (Decrease) in Other Noncurrent Assets
Increase (Decrease) in Accounts Payable
Increase (Decrease) in Accrued Liabilities
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Payments to Acquire Property, Plant, and Equipment
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation
Forgone Recovery, Individual Name
Outstanding Recovery, Individual Name
Awards Close in Time to MNPI Disclosures, Individual Name
Trading Arrangement, Individual Name
Disclosure of warrants [Text Block]
Lessee, Operating Leases [Text Block]
Lessee, Leases [Policy Text Block]
Share-Based Payment Arrangement [Policy Text Block]
Income Tax, Policy [Policy Text Block]
Other Accrued Liabilities, Current
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsNonOptionsOutstandingWeightedAverageExercisePrice
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Expirations
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsNonOptionsOutstandingAggregateIntrinsicValue
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted-Average Remaining Contractual Term
Lease, Cost
Income Tax Expense (Benefit)
Effective Income Tax Rate Reconciliation, Percent
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-Based Compensation Cost
Deferred Tax Assets, Other
Deferred Tax Assets, Gross
Deferred Tax Assets, Valuation Allowance
Deferred Tax Assets, Net of Valuation Allowance
Unrecognized Tax Benefits