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Note 7 - Common Stock Warrants - Schedule of Warrants Outstanding (Details)
Mar. 31, 2026
$ / shares
shares
Warrants, number of shares (in shares) | shares 359,116
Warrants, Exercise Price (in dollars per share) | $ / shares $ 5.46
SWK Warrants – Debt – Tranche #1 [Member]  
Warrants, number of shares (in shares) | shares 51,239
Warrants, Exercise Price (in dollars per share) | $ / shares $ 5.86
SWK Warrants – Debt – Tranche #2 [Member]  
Warrants, number of shares (in shares) | shares 18,141
Warrants, Exercise Price (in dollars per share) | $ / shares $ 6.62
SWK Warrants – Debt – Tranche #3 [Member]  
Warrants, number of shares (in shares) | shares 289,736
Warrants, Exercise Price (in dollars per share) | $ / shares $ 5.32