Note 14 - Federal and State Income Taxes - The Change in Deferred Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Federal and State Income Taxes
Provision for income taxes	$ 15,272	$ (14,530)	$ 6,364
Net deferred tax asset resulting from market value adjustments of acquisitions			(381)
Net deferred tax assets resulting from sale of other subsidiary		(363)
Net deferred tax liabilities resulting from sale of bank subsidiary			(1,644)
Statement of stockholders' equity- Other comprehensive income (loss)	(122)	837	1,433
Total	$ 15,150	$ (13,330)	$ 5,772