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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 Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended March 31, |
|  | 2026 |  |  | 2025 |
Numerator: |  |  |  |  |  |  |  |
Net income |  | $ | 1,420,362 |  |  | $ | 7,060,039 |
Accrued dividends on Series F Preferred Stock |  |  | (30,997 | ) |  |  | (67,651 | )
Deemed dividends |  |  | (1,349,483 | ) |  |  | (1,056,332 | )
Numerator for basic EPS - net income (loss) available to common stockholders |  |  | 39,882 |  |  |  | 5,936,056 |
Effect of convertible securities and liability classified equity instrument: |  |  |  |  |  |  |  |
Accrued dividends on Series F Preferred Stock |  |  | 30,997 |  |  |  | 67,651 |
Interest expense on convertible note payable |  |  | — |  |  |  | 18,802 |
Loss (gain) on change in fair value of warrant liabilities |  |  | 5,000 |  |  |  | (7,780,000 | )
Numerator for diluted EPS - net income (loss) available to common stockholders |  | $ | 75,879 |  |  | $ | (1,757,491 | )
Denominator: |  |  |  |  |  |  |  |
Denominator for basic EPS - weighted average shares |  |  | 53,366,403 |  |  |  | 11,649,682 |
Effect of dilutive securities: |  |  |  |  |  |  |  |
Incremental shares for outstanding warrants (Series A, B and F) |  |  | 985,344 |  |  |  | 3,510,206 |
Convertible note and accrued interest |  |  | — |  |  |  | 572,054 |
Convertible Series F Preferred Stock |  |  | 2,197,712 |  |  |  | 4,392,119 |
Convertible Series G Preferred Stock |  |  | 500,000 |  |  |  | — |
Incremental unvested restricted stock units |  |  | 191,037 |  |  |  | 70,400 |
Denominator for diluted EPS - weighted average shares |  |  | 57,240,496 |  |  |  | 20,194,461 |
Net loss per common share - basic |  | $ | 0.00 |  |  | $ | 0.51 |
Net loss per common share - diluted |  | $ | 0.00 |  |  | $ | (0.09 | )

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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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