Note 6 - INCOME TAXES - Reconciliation of the Expected Federal Income Tax Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
INCOME TAXES
Computed "expected" tax expense	$ 3,514	$ 5,699	$ 8,965	$ 10,219
Tax exempt income, net	(2,476)	(1,802)	(4,698)	(3,521)
Bank-owned life insurance	(73)	(95)	(146)	(194)
State income taxes, net of federal benefit, current year	982	1,247	2,273	2,271
Provision adjustment from accounting method change			1,181
Tax Credits	(289)	(57)	(531)	(114)
Income from tax credit equity investments	(158)		143
Acquisition costs	242		372
Excess tax benefit on stock options exercised and restricted stock awards vested	(40)	(40)	(474)	(204)
Other	(526)	(164)	(612)	(128)
Federal and state income tax expense	$ 1,492	$ 4,788	$ 3,825	$ 8,329
Computed "expected" tax expense (in percentage)	21.00%	21.00%	21.00%	21.00%
Tax exempt income, net (in percentage)	(14.80%)	(6.60%)	(11.00%)	(7.20%)
Bank-owned life insurance (in percentage)	(0.40%)	(0.40%)	(0.30%)	(0.40%)
State income taxes, net of federal benefit, current year (in percentage)	5.90%	4.60%	5.30%	4.70%
Provision adjustment from accounting method change (in percentage)			(2.80%)
Tax credits (in percentage)	(1.70%)	(0.20%)	(1.20%)	(0.20%)
Income from tax credit equity investments (in percentage)	(0.90%)		0.30%
Acquisition costs (in percentage)	1.40%		0.90%
Excess tax benefit on stock options exercised and restricted stock awards vested (in percentage)	(0.20%)	(0.10%)	(1.10%)	(0.40%)
Other (in percentage)	(3.20%)	(0.70%)	(1.50%)	(0.30%)
Federal and state income tax expense (in percentage)	8.90%	17.60%	9.00%	17.20%