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Note 2 - Summary of Significant Accounting Policies (Tables) | 3 Months Ended
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Mar. 31, 2026
Notes Tables |
Schedule of Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Table Text Block] |
|  | March 31, |  |  | December 31, |
|  | 2026 |  |  | 2025 |
Cash and cash equivalents |  | $ | 18,405 |  |  | $ | 7,958 |
Restricted cash included in other assets |  |  | 435 |  |  |  | 267 |
Total cash, cash equivalents, and restricted cash in the unaudited condensed consolidated statements of cash flows |  | $ | 18,840 |  |  | $ | 8,225 |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended March 31, |
|  | 2026 |  |  | 2025* |
Numerator for basic and diluted income (loss) per share: |  |  |  |  |  |  |  |
Net income (loss) from continuing operations attributable to common stockholders |  | $ | 552,403 |  |  | $ | (3,330 | )
Net income from discontinued operations |  |  | — |  |  |  | 11,000 |
Net income |  | $ | 552,403 |  |  | $ | 7,670 |
Denominator for income (loss) per share: |  |  |  |  |  |  |  |
Weighted average shares outstanding – basic (diluted for net loss) |  |  | 26,015 |  |  |  | 1,062 |
Effect of dilutive January 2026 Pre-Funded Warrants |  |  | 139,616 |  |  |  | — |
Effect of dilutive in-the-money warrants and RSUs |  |  | 78 |  |  |  | 21 |
Weighted average shares outstanding – diluted for net income |  |  | 165,709 |  |  |  | 1,083 |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] |
|  | As of March 31, |
|  | 2026 |  |  | 2025* |
Common stock equivalent of Series B Non-Voting Convertible Preferred Stock (the “Series B Preferred Stock”) |  |  | — |  |  |  | 3 |
October 2025 Pre-funded Warrants |  |  | 22,664 |  |  |  | — |
Stock options |  |  | — |  |  |  | 1 |
Stock warrants |  |  | 4 |  |  |  | 951 |
|  |  | 22,668 |  |  |  | 955 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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