NOTE 5 - INCOME TAXES - Reconciliation of the Expected Federal Income Tax Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Taxes
Computed "expected" tax expense	$ 8,293	$ 4,486	$ 18,512	$ 10,712
Tax exempt income, net	(2,032)	(1,350)	(5,553)	(3,822)
Bank-owned life insurance	(93)	(101)	(287)	(271)
State income taxes, net of federal benefit, current year	1,799	1,003	4,070	2,456
Tax Credits	(57)	(116)	(171)	(348)
Excess tax benefit on stock options exercised and restricted stock awards vested	(107)	14	(311)	(248)
Other	126	80	(2)	219
Federal and state income tax expense	$ 7,929	$ 4,016	$ 16,258	$ 8,698
Computed "expected" tax expense (in percentage)	21.00%	21.00%	21.00%	21.00%
Tax exempt income, net (in percentage)	(5.10%)	(6.30%)	(6.30%)	(7.50%)
Bank-owned life insurance (in percentage)	(0.20%)	(0.50%)	(0.30%)	(0.50%)
State income taxes, net of federal benefit, current year (in percentage)	4.60%	4.70%	4.60%	4.80%
Tax credits (in percentage)	(0.10%)	(0.50%)	(0.20%)	(0.70%)
Excess tax benefit on stock options exercised and restricted stock awards vested (in percentage)	(0.30%)	0.10%	(0.40%)	(0.50%)
Other (in percentage)	0.20%	0.40%		0.50%
Federal and state income tax expense (in percentage)	20.10%	18.90%	18.40%	17.10%