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Note 17 - Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income tax expense at federal statutory rate $ 8,683 $ 3,183 $ 5,383
State expense, net of federal income tax effect 1,463 547 953
Change in valuation allowance (1) (247) (181)
Nondeductible expenses (35) (31) 447
Foreign rate differential 97 104 78
Other (6) 79 (96)
Total income tax expense $ 10,201 $ 3,635 $ 6,584
Effective income tax rate 24.70% 24.00% 25.70%