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Note 9 - Share-based Payment Awards -Schedule of Restricted Stock Unit Activity (Details) - Restricted Stock Units (RSUs) [Member]
 12 Months Ended
Dec. 31, 2024
$ / shares
shares
Outstanding and unvested, balance (in shares) | shares 274,204
Outstanding and unvested, Weighted Average Grant-Date Fair Value Per Unit (in dollars per share) | $ / shares $ 2.63
Granted (in shares) | shares 65,266
Granted, Weighted Average Grant-Date Fair Value Per Unit (in dollars per share) | $ / shares $ 6.74
Vested (in shares) | shares (90,402)
Vested, Weighted Average Grant-Date Fair Value Per Unit (in dollars per share) | $ / shares $ 2.63
Forfeited (in shares) | shares (23,000)
Forfeited, Weighted Average Grant-Date Fair Value Per Unit (in dollars per share) | $ / shares $ 2.63
Outstanding and unvested, balance (in shares) | shares 226,068
Outstanding and unvested, Weighted Average Grant-Date Fair Value Per Unit (in dollars per share) | $ / shares $ 3.82