Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Note 11 - Income Taxes - Effective Income Tax Rate Reconciliation (Details)
Taxes at federal statutory rate	$ 22,948	$ 9,489	$ 11,200
Taxes at federal statutory rate, percentage	21.00%	21.00%	21.00%
State and local income tax, net of Federal income tax benefit	$ 6,865	$ 1,043	$ 1,274
State and local income tax, net of Federal income tax benefit, percentage	6.30%	2.30%	2.40%
Tax exempt	$ (1,150)	$ (875)	$ (878)
Tax exempt, percentage	(1.00%)	(1.90%)	(1.60%)
Nondeductible merger expense		$ 543	$ 328
Nondeductible merger expense, percentage		1.20%	0.60%
Other	$ (1,178)	$ 308	$ 128
Other, percentage	(1.10%)	0.70%	0.30%
Total provision for income taxes	$ 27,485	$ 10,508	$ 12,052
Taxes at effective rate, percentage	25.20%	23.30%	22.70%