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Note 9 - Income Tax (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Effective Income Tax Rate Reconciliation, Percent 18.50% 15.20% 18.80% 14.90%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent     21.00%  
Discontinued Operation, Tax Effect of Discontinued Operation $ 14 $ 30 $ 85 $ 66