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Note 7 - Warrants	9 Months Ended
Sep. 30, 2025
Notes to Financial Statements
Warrants Disclosure [Text Block]	Note 7 — Warrants At September 30, 2025, the Company had no warrants outstanding. At December 31, 2024, the Company had 342,240 warrants outstanding with a weighted average exercise price of $8.90 per share. At September 30, 2025 and December 31, 2024, the Company had 653,827 and 763,827 pre-funded warrants outstanding, respectively, with an exercise price of $0.001 per share. During the nine months ended September 30, 2025, a warrant holder exercised 110,000 prefunded warrants for exercise proceeds of $110. At September 30, 2025, all warrants were exercisable, although the warrants held by certain of the Company’s warrant holders may be exercised only to the extent that the total number of shares of common stock then beneficially owned by such warrant holder does not exceed 4.99% (or, at the investor’s election, 9.99%) of the outstanding shares of the Company’s common stock.

Note 7 - Warrants

9 Months Ended

Sep. 30, 2025

Note 7 — Warrants

At September 30, 2025, the Company had no warrants outstanding. At December 31, 2024, the Company had 342,240 warrants outstanding with a weighted average exercise price of $8.90 per share. At September 30, 2025 and December 31, 2024, the Company had 653,827 and 763,827 pre-funded warrants outstanding, respectively, with an exercise price of $0.001 per share. During the nine months ended September 30, 2025, a warrant holder exercised 110,000 prefunded warrants for exercise proceeds of $110.

At September 30, 2025, all warrants were exercisable, although the warrants held by certain of the Company’s warrant holders may be exercised only to the extent that the total number of shares of common stock then beneficially owned by such warrant holder does not exceed 4.99% (or, at the investor’s election, 9.99%) of the outstanding shares of the Company’s common stock.