Note 16 - Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive income (loss)		$ (4,734)	$ 7,151	$ 325
Tax effect	[1]	994	(1,502)	(68)
Accumulated other comprehensive (loss) income, net of tax		(3,740)	5,649	257
Unrealized Net Holding (Losses) Gains On Available-for-sale Securities [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive income (loss)		$ (4,734)	$ 7,151	$ 325

[1] At tax rates of 21%