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Note 13 - Earnings Per Share (Details Textual) - shares
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Restricted Stock Units (RSUs) [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) 314,461 301,111
Prefunded Warrants [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) 3,390,008 3,930,008
Warrant [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) 1,091,346 560,096