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Note 17 - Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income tax expense at federal statutory rate	$ 6,148	$ 8,683	$ 3,183
State expense, net of federal income tax effect	942	1,463	547
Change in valuation allowance	(30)	(1)	(247)
Nondeductible expenses	257	(35)	(31)
Foreign rate differential	133	97	104
Accrued interest on uncertain income tax positions	264	106	16
State franchise tax	250	110	92
Other	243	(222)	(29)
Total income tax expense	$ 8,207	$ 10,201	$ 3,635
Effective income tax rate	28.00%	24.70%	24.00%

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit).

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