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Significant Accounting Policies (Policies) | 9 Months Ended
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Sep. 30, 2025
Accounting Policies [Abstract] |
Basis of Accounting, Policy [Policy Text Block] | Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) and are expressed in U.S. dollars. In management’s opinion, the unaudited condensed consolidated financial statements include all normal and recurring adjustments that are considered necessary for the fair presentation of the Company’s financial position and operating results.
Consolidation, Policy [Policy Text Block] | Principles of Consolidation The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its former wholly owned subsidiary, DERMAdoctor, which was fully divested on March 12, 2024, as of and for the nine months ended September 30, 2024. All significant intercompany balances and transactions have been eliminated in consolidation. See also Note 16, “DERMAdoctor Divestiture.” The accompanying unaudited condensed consolidated financial statements include only the accounts of the Company for the three and nine months ended September 30, 2025.
Reclassification, Comparability Adjustment [Policy Text Block] | Financial Statement Reclassification Certain account balances from prior periods have been reclassified in these unaudited condensed consolidated financial statements to conform to current period classifications. Prior year amounts have been modified in these unaudited condensed consolidated financial statements to properly report amounts under current operations and discontinued operations (see Note 14, “Avenova Asset Divestiture and Bridge Loan”; Note 15, “PhaseOne Divestiture”; and Note 16, “DERMAdoctor Divestiture”).
Use of Estimates, Policy [Policy Text Block] | Use of Estimates The preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the unaudited condensed consolidated financial statements and accompanying notes. Actual results may differ significantly from those estimates. Significant estimates made by management include, but are not limited to, contract liabilities related to product sales such as product returns, assumptions for valuing warrants, assumptions for valuing derivative liabilities, long-lived asset impairments, stock-based compensation, income taxes and other contingencies. These estimates are based on management’s best estimates and judgment. Actual results may differ from these estimates. Estimates, judgments, and assumptions are continuously evaluated and are based on management’s experience and other factors, including expectations of future events that are believed to be reasonable under the circumstances. Uncertainty about these assumptions, judgments and estimates could result in outcomes that require a material adjustment to the carrying amount of assets or liabilities affected in future periods.
Segment Reporting, Policy [Policy Text Block] | Segment Information The Company has one operating and reportable segment that encompasses the Company’s consolidated ongoing operations, reflecting the integrated nature of its currently limited business. The Company’s chief operating decision maker (“CODM”) is its chief executive officer. The measurement of profit and loss is the segment loss, which is equivalent to the “net loss from continuing operations” as reported on the Company's condensed consolidated statements of operations. The measurement of segment assets is reported on the Company’s condensed consolidated balance sheet as “total assets.” The CODM allocates resources to the Company’s initiatives and assesses performance on a consolidated basis, focused on the maintenance of the Company’s cash resources while assessing strategic alternatives on an ongoing basis and maintaining its public company status. The CODM is not regularly provided with disaggregated actual expense information, other than the actual expense information included in the condensed consolidated statements of operations, as the Company’s integrated operating model emphasizes shared resources and centralized decision-making.
Unaudited Interim Financial Information, Policy [Policy Text Block] | Unaudited Condensed Consolidated Interim Financial Information The accompanying unaudited condensed consolidated financial statements and related disclosures have been prepared on the same basis as the annual consolidated financial statements and, in the opinion of management, reflect all adjustments, which include only recurring adjustments, necessary for a fair presentation. The year-end condensed consolidated balance sheet data was derived from the audited consolidated financial statements but does not include all disclosures required by U.S. GAAP. The unaudited condensed consolidated results of operations for any interim period are not necessarily indicative of the results to be expected for the full year or for any other future year or interim period. The unaudited condensed consolidated financial statements and notes included herein should be read in conjunction with the annual consolidated financial statements and notes for the year ended December 31, 2024, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024, which was filed with the SEC on April 2, 2025 (collectively, the “2024 Annual Report”).
Cash and Cash Equivalents, Policy [Policy Text Block] | Cash, Cash Equivalents, and Highly Liquid Restricted Cash The Company considers all highly-liquid instruments with a stated maturity of three months or less at the date of purchase to be cash equivalents. Cash and cash equivalents are stated at cost, which approximates fair value. As of September 30, 2025 and December 31, 2024, the Company’s cash and cash equivalents were held in a major financial institution in the United States. The following table provides a reconciliation of the cash, cash equivalents, and restricted cash reported in the condensed consolidated balance sheets (in thousands):
|  | September 30, |  |  | December 31, |
|  | 2025 |  |  | 2024 |
Cash and cash equivalents |  | $ | 2,309 |  |  | $ | 430 |
Restricted cash included in other assets |  |  | 393 |  |  |  | 477 |
Total cash, cash equivalents, and restricted cash in the condensed consolidated statements of cash flows |  | $ | 2,702 |  |  | $ | 907 |
The restricted cash amount included in other assets on the condensed consolidated balance sheets represents amounts held as certificates of deposit for long-term financing and lease arrangements as contractually required by our financial institution and landlord.
Concentration Risk, Credit Risk, Policy [Policy Text Block] | Concentrations of Credit Risk and Major Partners Financial instruments that potentially subject us to significant concentrations of credit risk consist primarily of cash, cash equivalents and restricted cash. The Company maintains deposits of cash, cash equivalents and restricted cash with a major financial institution in the United States. The Company has a significant amount of its cash balances at financial institutions which throughout the year regularly exceed the federally insured limit of $250,000. Any loss incurred or a lack of access to such funds could have a significant adverse impact on the Company’s financial condition, results of operations, and cash flows.
Fair Value of Financial Instruments, Policy [Policy Text Block] | Fair Value of Financial Assets and Liabilities The Company’s financial instruments include cash and cash equivalents, restricted cash, accounts payable, accrued liabilities and warrant liabilities. The Company’s cash and cash equivalents, restricted cash, accounts payable, and accrued liabilities are carried at cost, which management believes approximates fair value due to the short-term nature of these instruments. The Company follows Accounting Standards Codification (“ASC”) 820, Fair Value Measurements and Disclosures, with respect to assets and liabilities that are measured at fair value on a recurring basis and nonrecurring basis. Under this standard, fair value is defined as the exit price, or the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants as of the measurement date. The standard also establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs market participants would use in valuing the asset or liability developed based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the Company’s assumptions about the factors market participants would use in valuing the asset or liability developed based upon the best information available in the circumstances. There are three levels of inputs that may be used to measure fair value: Level 1 – quoted prices in active markets for identical assets or liabilities; Level 2 – quoted prices for similar assets and liabilities in active markets or inputs that are observable; and Level 3 – inputs that are unobservable (for example, cash flow modeling inputs based on assumptions). Categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. See additional information in Note 3, “Fair Value Measurements.”
Property, Plant and Equipment, Policy [Policy Text Block] | Property and Equipment, Net Property and equipment are stated at cost, less accumulated depreciation. Depreciation is calculated using the straight-line method over the estimated useful lives of the related assets of five to seven years for office and laboratory equipment, three to five years for computer equipment and software, and five to seven years for furniture and fixtures. Leasehold improvements are amortized over the shorter of the estimated useful life of the asset or the lease term. The costs of normal maintenance, repairs, and minor replacements are expensed as incurred.
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] | Impairment of Long-Lived Assets The Company’s long-lived assets are reviewed for impairment in accordance with ASC 360, Property, Plant and Equipment, which requires that companies consider whether events or changes in facts and circumstances, both internally and externally, may indicate that an impairment of long-lived assets held for use are present. The Company reviews long-lived assets for impairment at least annually or whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable or that the useful lives of these assets are no longer appropriate. Determination of recoverability is based on an estimate of undiscounted future cash flows resulting from the use of the asset and its eventual disposition. In the event that such cash flows are not expected to be sufficient to recover the carrying amount of the asset, the assets are written down to their estimated fair values and the loss is recognized in the condensed consolidated statements of operations. The Company recorded $87 thousand and $676 thousand in property and equipment impairment losses for the three and nine months ended September 30, 2025, respectively. This included $3 thousand and $33 thousand for fixed assets including leasehold improvements for the three and nine months ended September 30, 2025, respectively and $84 thousand and $643 thousand for operating lease right-of-use assets for the three and nine months ended September 30, 2025, respectively. The Company did not record any impairment losses for the three and nine months ended September 30, 2024.
Lessee, Leases [Policy Text Block] | Leases At the inception of an arrangement, the Company determines whether the arrangement is or contains a lease based on the unique facts and circumstances present. Operating lease liabilities and their corresponding right-of-use assets are recorded based on the present value of lease payments over the expected lease term. The interest rate implicit in lease contracts is typically not readily determinable. As such, the Company utilizes its incremental borrowing rate, which is the rate incurred to borrow, on a collateralized basis over a similar term, an amount equal to the lease payments in a similar economic environment. Certain adjustments to the right-of-use assets may be required for items such as initial direct costs paid or incentives received. The Company has elected to combine lease and non-lease components as a single component. This will potentially result in the initial and subsequent measurement of the balances of the right-of-use assets and lease liability for leases being greater than if the policy election was not applied. Leases include variable components (e.g., common area maintenance) that are paid separately from the monthly base payment based on actual costs incurred and therefore were not included in the right-of-use assets and lease liability but are reflected as an expense in the period incurred. The lease expense is recognized over the expected term on a straight-line basis. Operating leases are recognized in the condensed consolidated balance sheets as right-of-use assets, operating lease liabilities current and operating lease liabilities non-current. The Company recorded $84 and $643 thousand in impairment losses for the three and nine months ended September 30, 2025, respectively, related to operating lease right-of-use assets.
Warrant Liabilities [Policy Text Block] | Common Stock Warrants The Company accounts for common stock purchase warrants issued in connection with its equity offerings in accordance with the provisions of ASC 480, Distinguishing Liabilities from Equity, and ASC 815, Derivatives and Hedging (ASC 815). The Company classifies as equity any warrants that (i) require physical share settlement or net-share settlement or (ii) give the Company a choice of net-cash settlement (physical share settlement or net-share settlement). The Company classifies as liabilities any warrants that (i) require net-cash settlement, (ii) give the counterparty a choice of net-cash physical settlement or net-share settlement. In accordance with ASC 815, the Company also classifies as liabilities any warrants for which the shares underlying the contract are subject to stockholder approval before the warrant can be exercised. For warrants that are classified as liabilities, the Company records the fair value of the warrants upon issuance and at each balance sheet date with changes in the estimated fair value recorded as a non-cash gain or loss in the condensed consolidated statements of operations. The fair values of these warrants are determined using the Black-Scholes option pricing model. These values are subject to a significant degree of management’s judgment. See Note 3, “Fair Value Measurements,” subheading “Black Scholes Valuation Models and Assumptions” and Note 10, “Common Stock Warrants.” Amendments to warrant terms are recorded as a non-cash gain or loss on modification of common stock warrants. The gain or loss represents the decrease or increase in the fair value of the amended warrants when comparing the value immediately before and after amendment using the Black-Scholes option pricing model. See Note 3, “Fair Value Measurements,” subheading “Black Scholes Valuation Models and Assumptions.”
Preferred Stock [Policy Text Block] | Preferred Stock Preferred stock that is redeemable at the option of the holder or upon events not solely within the control of the Company is classified as mezzanine (temporary) equity in accordance with ASC 480-10-S99-3A. Such instruments are initially recorded at fair value, net of issuance costs, and are not accreted to redemption value unless redemption becomes probable. Terms of the Company’s Preferred Stock have historically included a Ratchet whereby the applicable conversion price could be adjusted (as defined and described in Note 11, “Stockholders’ Equity (Deficit)”). The applicable Ratchet provisions of the Company’s outstanding Preferred Stock terminated during the quarter ended March 31, 2024. Prior to a termination, when a conversion price for outstanding Preferred Stock was adjusted under the Ratchet, the Company recorded a deemed dividend as a reduction to income available to common stockholders. In accordance with ASC 820, Fair Value Measurements and Disclosures (“ASC 820”), the deemed dividend was measured as the difference between (1) the fair value of the Preferred Stock immediately prior to the conversion price adjustment (but without the Ratchet anti-dilution protection feature) and (2) the fair value of the Preferred Stock immediately after the conversion price adjustment (but without the Ratchet anti-dilution protection feature). These fair values were determined using the Black Scholes option pricing model. These values are subject to a significant degree of management’s judgment. See also Note 3, “Fair Value Measurements,” subheading “Black Scholes Valuation Models and Assumptions.”
Share-Based Payment Arrangement [Policy Text Block] | Stock-Based Compensation The Company’s stock-based compensation includes grants of stock options and restricted stock units (“RSUs”) to employees, consultants and non-employee directors. The expense associated with these grants is recognized in the Company’s condensed consolidated statements of operations based on their fair values as they are earned under the applicable vesting terms. For stock options granted, the fair value of the stock options is estimated using a Black-Scholes option pricing model. The Company accounts for RSUs issued to employees and non-employees (directors, consultants and advisory board members) based on the fair market value of the Company’s common stock on the date of issuance. See Note 12, “Stock-Based Compensation” for further information regarding stock-based compensation expense and the assumptions used in estimating the expense.
Income Tax, Policy [Policy Text Block] | Income Taxes The Company accounts for income taxes under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. A valuation allowance is recognized if it is more likely than not that some portion or the entire deferred tax asset will not be recognized.
Earnings Per Share, Policy [Policy Text Block] | Net (Loss) Income per Share The Company computes net (loss) income per share by presenting both basic and diluted loss per share (“EPS”) as shown in the Company’s condensed consolidated statements of operations (unaudited). Basic EPS is computed by dividing net loss available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted EPS gives effect to all dilutive potential common shares outstanding during the period, including stock options and warrants, using the treasury stock method. In computing diluted EPS, the average stock price for the period is used to determine the number of shares assumed to be purchased from the exercise of stock options or warrants. Potentially dilutive common share equivalents are excluded from the diluted EPS computation in net loss periods if their effect would be anti-dilutive. The following table provides a reconciliation of the numerator and denominator used for basic and diluted (loss) earnings per share (in thousands):
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Numerator for basic and diluted income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss from continuing operations |  | $ | (1,333 | ) |  | $ | (1,854 | ) |  | $ | (6,627 | ) |  | $ | (6,852 | )
Less: Increase to accumulated deficit due to adjustment to common stock warrants exercise price |  |  | — |  |  |  | 1,005 |  |  |  | — |  |  |  | 1,005 |
Less: Increase to accumulated deficit due to adjustment to Preferred Stock conversion price |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 380 |
Net loss from continuing operations attributable to common stockholders |  | $ | (1,333 | ) |  | $ | (2,859 | ) |  | $ | (6,627 | ) |  | $ | (8,237 | )
Net income from discontinued operations, net of taxes |  |  | 40 |  |  |  | 642 |  |  |  | 11,082 |  |  |  | 841 |
Net (loss) income |  | $ | (1,293 | ) |  | $ | (2,217 | ) |  | $ | 4,455 |  |  | $ | (7,396 | )
Denominator for (loss) income per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average shares outstanding – basic (diluted for net loss) |  |  | 5,876 |  |  |  | 1,155 |  |  |  | 5,669 |  |  |  | 930 |
Effect of dilutive Unsecured Convertible Notes |  |  | — |  |  |  | — |  |  |  | 107 |  |  |  | — |
Weighted average shares outstanding – diluted for net income |  |  | 5,876 |  |  |  | 1,155 |  |  |  | 5,776 |  |  |  | 930 |
The following outstanding preferred stock, stock options and stock warrants were excluded from the diluted EPS computation as their effect would have been anti-dilutive (in thousands):
|  | As of September 30, |
|  | 2025 |  |  | 2024 |
Common stock equivalent of Series B Non-Voting Convertible Preferred Stock (the “Series B Preferred Stock”) |  |  | 15 |  |  |  | 15 |
Stock options |  |  | 1 |  |  |  | 7 |
Stock warrants |  |  | 101 |  |  |  | 225 |
|  |  | 117 |  |  |  | 247 |
New Accounting Pronouncements, Policy [Policy Text Block] | Recent Accounting Pronouncements In November 2024, the FASB issued Accounting Standards Update (“ASU”) No. 2024-03, Disaggregation of Income Statement Expenses (“ASU 2024-03”). ASU 2024-03 is intended to increase transparency and provide investors with more detailed information about the nature of expenses reported on the face of the statements of operations. ASU 2024-03 does not change the requirements for the presentation of expenses on the face of the statements of operations. Under ASU 2024-03, entities are required to disaggregate, in tabular format, expenses presented on the face of the statements of operations if they include any of the following expense categories: employee compensation, depreciation, intangible asset amortization, and depreciation or depletion. For any remaining items within each relevant expense caption, entities must provide a qualitative description of the nature of those expenses. ASU 2024-03 is effective for annual reporting periods beginning after December 15, 2026 and interim reporting periods beginning after December 15, 2027. Early adoption is permitted. While the adoption of ASU 2024-03 is not expected to have an effect on our consolidated financial statements, it is expected to result in incremental disclosures within the notes to our condensed consolidated financial statements. The Company is currently evaluating ASU 2024-03 and does not expect it to have a material effect on the Company’s condensed consolidated financial statements. For information regarding additional accounting pronouncements that could affect our business, results of operations, financial condition, and liquidity, see Note 2, “Summary of Significant Accounting Policies” included in our 2024 Annual Report. The Company continues to evaluate the potential impact of adopting the new accounting guidance on its consolidated financial position, results of operations and cash flows.

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