Note 24 - Fair Value of Financial Instruments - Assets and Liabilities Measured On a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Securities available for sale	$ 890,751	$ 1,021,061
US Treasury Securities [Member]
Securities available for sale	30,115	22,314
US Government Agencies Debt Securities [Member]
Securities available for sale	47,372	27,493
Corporate Debt Securities [Member]
Securities available for sale	46,004	46,582
Collateralized Mortgage-Backed Securities [Member]
Securities available for sale	451,725	552,339
US States and Political Subdivisions Debt Securities [Member]
Securities available for sale	315,535	372,333
Fair Value, Recurring [Member]
Loans Held for Sale	304	1,200
Total	891,055	1,022,261
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Loans Held for Sale	0	0
Total	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Loans Held for Sale	304	1,200
Total	837,287	978,171
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Loans Held for Sale	0	0
Total	53,768	44,090
Fair Value, Recurring [Member] | US Treasury Securities [Member]
Securities available for sale	30,115	22,314
Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Securities available for sale	0	0
Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available for sale	30,115	22,314
Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Securities available for sale	0	0
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member]
Securities available for sale	47,372	27,493
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Securities available for sale	0	0
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available for sale	47,372	27,493
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Securities available for sale	0	0
Fair Value, Recurring [Member] | Corporate Debt Securities [Member]
Securities available for sale	46,004	46,582
Fair Value, Recurring [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Securities available for sale	0	0
Fair Value, Recurring [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available for sale	27,004	26,582
Fair Value, Recurring [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Securities available for sale	19,000	20,000
Fair Value, Recurring [Member] | Collateralized Mortgage-Backed Securities [Member]
Securities available for sale	451,725	552,339
Fair Value, Recurring [Member] | Collateralized Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Securities available for sale	0	0
Fair Value, Recurring [Member] | Collateralized Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available for sale	451,725	552,339
Fair Value, Recurring [Member] | Collateralized Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Securities available for sale	0	0
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]
Securities available for sale	315,535	372,333
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Securities available for sale	0	0
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available for sale	280,767	348,243
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Securities available for sale	$ 34,768	$ 24,090