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Note 9 - Income Tax (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Effective Income Tax Rate Reconciliation, Percent, Total 18.60% 9.20% 16.60% 4.10%  
Discontinued Operation, Tax Effect of Discontinued Operation $ 32   $ 89   $ 0