Annual report pursuant to Section 13 and 15(d)

Note 9 - Stock-based Incentive Plans - Restricted Stock Activity (Details)

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Note 9 - Stock-based Incentive Plans - Restricted Stock Activity (Details) - Restricted Stock [Member] - $ / shares
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Balance (in shares) 186,245 566,272
Balance, weighted avg. price (in dollars per share) $ 7.08 $ 7.21
Vested (in shares) (186,245) (380,027)
Vested, wtd. avg. price (in dollars per share) $ 7.08 $ 7.27
Balance (in shares) 0 186,245
Balance, weighted avg. price (in dollars per share) $ 0 $ 7.08