Note 12 - Condensed Financial Statements of Parent Company - Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income
Gain on sale of private equity investment	$ 232	$ 3,823
Expenses
Applicable income tax benefit (expense)	2,984	5,831
Net income	15,691	25,932
Parent Company [Member]
Income
Dividends from subsidiaries	12,000	25,000
Gain on sale of private equity investment	232	3,823
Revenues	12,232	28,823
Expenses
Other expenses	2,142	1,220
Income before income tax benefit (expense) and equity in undistributed net income of subsidiaries	10,090	27,603
Applicable income tax benefit (expense)	499	(491)
Income before equity (deficit) in undistributed net income of subsidiaries	10,589	27,112
Equity (deficit) in undistributed net income of subsidiaries	5,102	(1,180)
Net income	$ 15,691	$ 25,932