Note 11 - Fair Value Measurements - Fair Value of Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	$ 218,757	$ 208,549
Collateralized Mortgage-Backed Securities [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	10,496	9,611
Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	142,015	131,736
US Government-sponsored Enterprises Debt Securities [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	2,485	2,440
US States and Political Subdivisions Debt Securities [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	49,042	47,076
Other Debt Obligations [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	8,800	11,286
Fair Value, Recurring [Member]
Loans held for sale	161,826	135,909
Fair Value, Recurring [Member] \| Mortgage Banking [Member]
Derivatives Assets, fair value	1,484	897
Derivatives liabilities, fair value	1,149	46
Fair Value, Recurring [Member] \| Interest Rate Swap [Member]
Derivatives Assets, fair value	8,502	12,575
Derivatives liabilities, fair value	8,502	12,575
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Loans held for sale	0	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| Mortgage Banking [Member]
Derivatives Assets, fair value	0	0
Derivatives liabilities, fair value	0	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| Interest Rate Swap [Member]
Derivatives Assets, fair value	0	0
Derivatives liabilities, fair value	0	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Loans held for sale	161,826	135,909
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Mortgage Banking [Member]
Derivatives Assets, fair value	0	0
Derivatives liabilities, fair value	0	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Interest Rate Swap [Member]
Derivatives Assets, fair value	8,502	12,575
Derivatives liabilities, fair value	8,502	12,575
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Loans held for sale	0	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| Mortgage Banking [Member]
Derivatives Assets, fair value	1,484	897
Derivatives liabilities, fair value	1,149	46
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| Interest Rate Swap [Member]
Derivatives Assets, fair value	0	0
Derivatives liabilities, fair value	0	0
Fair Value, Recurring [Member] \| Collateralized Mortgage-Backed Securities [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	10,496	9,611
Fair Value, Recurring [Member] \| Collateralized Mortgage-Backed Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	0	0
Fair Value, Recurring [Member] \| Collateralized Mortgage-Backed Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	10,496	9,611
Fair Value, Recurring [Member] \| Collateralized Mortgage-Backed Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	0	0
Fair Value, Recurring [Member] \| Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	142,015	131,736
Fair Value, Recurring [Member] \| Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	0	0
Fair Value, Recurring [Member] \| Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	142,015	131,736
Fair Value, Recurring [Member] \| Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	0	0
Fair Value, Recurring [Member] \| Private Equity Funds [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	5,919	6,400
Fair Value, Recurring [Member] \| Private Equity Funds [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	0	0
Fair Value, Recurring [Member] \| Private Equity Funds [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	5,919	6,400
Fair Value, Recurring [Member] \| Private Equity Funds [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	0	0
Fair Value, Recurring [Member] \| US Government-sponsored Enterprises Debt Securities [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	2,485	2,440
Fair Value, Recurring [Member] \| US Government-sponsored Enterprises Debt Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	0	0
Fair Value, Recurring [Member] \| US Government-sponsored Enterprises Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	2,485	2,440
Fair Value, Recurring [Member] \| US Government-sponsored Enterprises Debt Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	0	0
Fair Value, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	49,042	47,076
Fair Value, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	0	0
Fair Value, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	49,042	47,076
Fair Value, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	0	0
Fair Value, Recurring [Member] \| Other Debt Obligations [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	8,800	11,286
Fair Value, Recurring [Member] \| Other Debt Obligations [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	0	0
Fair Value, Recurring [Member] \| Other Debt Obligations [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	8,800	11,286
Fair Value, Recurring [Member] \| Other Debt Obligations [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available for sale, at fair value (cost: 2025—$238,362; 2024—$232,630)	$ 0	$ 0