Note 11 - Income Taxes - Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Domestic – Federal									$ 2,139	$ 2,892
Domestic – state									202	263
Foreign									522	267
Total									2,863	3,422
Domestic – Federal									(1,052)	(1,344)
Domestic – state									31	(190)
Foreign									(136)	(204)
Total									(1,157)	(1,738)
Income tax expense	$ 111	$ 446	$ 572	$ 577	$ 637	$ 515	$ 454	$ 78	$ 1,706	$ 1,684