Note 7 - Income Taxes - Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current	$ 9,092	$ 3,546	$ 5,574
Deferred	(224)	(308)	718
Total	8,868	3,238	6,292
Current	143	225	94
Deferred	(17)	(6)	33
Total	126	219	127
Current	2,197	578	1,322
Deferred	(36)	172	372
Total	2,161	750	1,694
Income Tax Expense (Benefit), Total	$ 11,155	$ 4,207	$ 8,113