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Note 13 - Equity Incentive Plan - Stock Options (Details) - USD ($)
$ / shares in Units, $ in Thousands
 6 Months Ended
Jun. 30, 2025
Dec. 31, 2024
Outstanding, shares (in shares) 2,089,040  
Outstanding, Weighted Average Exercise (in dollars per share) $ 32.07  
Outstanding, aggregate intrinsic value $ 1 $ 0
Granted, shares (in shares) 16,300  
Granted, Weighted Average Exercise Price (in dollars per share) $ 12.71  
Exercised, shares (in shares) 0  
Exercised, Weighted Average Exercise Price (in dollars per share) $ 0  
Exercised, Aggregate Intrinsic Value $ 0  
Forfeited and canceled, shares (in shares) (333,240)  
Forfeited and canceled (in dollars per share) $ 34.43  
Forfeited and canceled, aggregate intrinsic value $ 0  
Outstanding, shares (in shares) 1,772,100  
Outstanding, Weighted Average Exercise Price (in dollars per share) $ 31.45  
Outstanding, Weighted Average Remaining Contractual Term (Year) 6 years 6 months  
Vested, shares (in shares) 1,349,013  
Vested, Weighted Average Exercise Price (in dollars per share) $ 32.64  
Vested, Weighted Average Remaining Contractual Term (Year) 6 years  
Vested and expected to vest, shares (in shares) 1,772,100  
Vested and expected to vest, Weighted Average Exercise Price (in dollars per share) $ 31.45  
Vested and expected to vest, Weighted Average Remaining Contractual Term (Year) 6 years 6 months