Note 19 - Fair Value Measurements - Financial Assets and Liabilities Measured on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Securities available for sale	$ 608,062	$ 692,467
US Treasury Securities [Member]
Securities available for sale	139,427	149,577
US Government-sponsored Enterprises Debt Securities [Member]
Securities available for sale	83,348	104,580
US States and Political Subdivisions Debt Securities [Member]
Securities available for sale	63,723	66,472
Corporate Debt Securities [Member]
Securities available for sale	27,471	15,528
Fair Value, Recurring [Member]
Securities available for sale	608,062	692,467
Loans held for sale	1,061	8,481
Fair Value, Recurring [Member] \| Cash Flow Hedging [Member]
Derivative - cash flow hedges	1,325	2,800
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available for sale	0	0
Loans held for sale	0	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| Cash Flow Hedging [Member]
Derivative - cash flow hedges	0	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale	608,062	692,467
Loans held for sale	1,061	8,481
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Cash Flow Hedging [Member]
Derivative - cash flow hedges	1,325	2,800
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available for sale	0	0
Loans held for sale	0	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| Cash Flow Hedging [Member]
Derivative - cash flow hedges	0	0
Fair Value, Recurring [Member] \| US Treasury Securities [Member]
Securities available for sale	139,427	149,577
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	139,427	149,577
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-sponsored Enterprises Debt Securities [Member]
Securities available for sale	83,348	104,580
Fair Value, Recurring [Member] \| US Government-sponsored Enterprises Debt Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available for sale	0	0
Fair Value, Recurring [Member] \| US Government-sponsored Enterprises Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale	83,348	104,580
Fair Value, Recurring [Member] \| US Government-sponsored Enterprises Debt Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available for sale	0	0
Fair Value, Recurring [Member] \| Collateralized Mortgage Obligations [Member]
Securities available for sale	294,093	356,310
Fair Value, Recurring [Member] \| Collateralized Mortgage Obligations [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available for sale	0	0
Fair Value, Recurring [Member] \| Collateralized Mortgage Obligations [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale	294,093	356,310
Fair Value, Recurring [Member] \| Collateralized Mortgage Obligations [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	63,723	66,472
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	63,723	66,472
Fair Value, Recurring [Member] \| US States and Political Subdivisions 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	27,471	15,528
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	27,471	15,528
Fair Value, Recurring [Member] \| Corporate Debt Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available for sale	$ 0	$ 0