Note 11 - Warrants (Details Textual) - USD ($)	12 Months Ended
Note 11 - Warrants (Details Textual) - USD ($)	Dec. 31, 2025	Oct. 03, 2024	Oct. 01, 2024	Jun. 26, 2022
Class of Warrant or Right, Intrinsic Value	$ 0
Series B Warrants [Member]
Warrants and Rights Outstanding	$ 12,960
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 0.8294	$ 1.9445	$ 25
Stock Issued During Period, Shares, Warrant Exercises (in shares)	10,089,612
Series B Warrants [Member] \| Minimum [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 0.8294
Series B Warrants [Member] \| Maximum [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 1.1
June 2023 Warrants [Member] \| Minimum [Member]
Class of Warrant or Right, Maximum Percentage of Beneficial Ownership	4.99%
June 2023 Warrants [Member] \| Maximum [Member]
Class of Warrant or Right, Maximum Percentage of Beneficial Ownership	9.99%
Series A Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 1.9445	$ 1.9445	$ 12
Stock Issued During Period, Shares, Warrant Exercises (in shares)	63,017
Series F Agreement [Member]
Warrant Coverage	100.00%			100.00%