Note 6 - INCOME TAXES - Reconciliation of the Expected Federal Income Tax Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
INCOME TAXES
Computed "expected" tax expense	$ 6,264	$ 5,661	$ 18,773	$ 18,751
Tax exempt income, net	(4,204)	(3,705)	(11,965)	(10,103)
Bank-owned life insurance	(171)	(376)	(975)	(700)
State income taxes, net of federal benefit, current year	1,084	955	3,186	3,383
Tax credits	(26)
Tax credits		(202)	(77)	(411)
Income from tax credit equity investments	(546)	(449)	(1,639)	(1,340)
Excess tax benefit on stock options exercised and restricted stock awards vested	(310)	(7)	(834)	(451)
Other	(46)	(37)	(698)	(540)
Federal and state income tax expense	$ 2,045	$ 1,840	$ 5,771	$ 8,589
Computed "expected" tax expense (in percentage)	21.00%	21.00%	21.00%	21.00%
Tax exempt income, net (in percentage)	(14.10%)	(13.70%)	(13.40%)	(11.30%)
Bank-owned life insurance (in percentage)	(0.60%)	(1.40%)	(1.10%)	(0.80%)
State income taxes, net of federal benefit, current year (in percentage)	3.60%	3.50%	3.60%	3.80%
Tax credits (in percentage)	(0.10%)	(0.70%)	(0.10%)	(0.50%)
Income from tax credit equity investments (in percentage)	(1.80%)	(1.70%)	(1.80%)	(1.50%)
Excess tax benefit on stock options exercised and restricted stock awards vested (in percentage)	(1.00%)		(0.90%)	(0.50%)
Other (in percentage)	(0.10%)	(0.20%)	(0.80%)	(0.60%)
Federal and state income tax expense (in percentage)	6.90%	6.80%	6.50%	9.60%