Note 11 - Fair Value Measurements - Fair Value of Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Securities available for sale, at fair value (cost: 2026—$254,538; 2025—$246,579)	$ 237,348	$ 230,848
Collateralized Mortgage-Backed Securities [Member]
Securities available for sale, at fair value (cost: 2026—$254,538; 2025—$246,579)	9,349	10,113
Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member]
Securities available for sale, at fair value (cost: 2026—$254,538; 2025—$246,579)	152,622	152,309
US States and Political Subdivisions Debt Securities [Member]
Securities available for sale, at fair value (cost: 2026—$254,538; 2025—$246,579)	60,925	54,107
Other Debt Obligations [Member]
Securities available for sale, at fair value (cost: 2026—$254,538; 2025—$246,579)	9,425	8,800
Fair Value, Recurring [Member]
Loans held for sale	151,688	145,057
Fair Value, Recurring [Member] \| Mortgage Banking [Member]
Derivatives Assets, fair value	1,066	650
Derivatives liabilities, fair value	306	251
Fair Value, Recurring [Member] \| Interest Rate Swap [Member]
Derivatives Assets, fair value	8,432	7,660
Derivatives liabilities, fair value	8,432	7,660
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	151,688	145,057
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	8,432	7,660
Derivatives liabilities, fair value	8,432	7,660
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	1,066	650
Derivatives liabilities, fair value	306	251
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: 2026—$254,538; 2025—$246,579)	9,349	10,113
Fair Value, Recurring [Member] \| Collateralized Mortgage-Backed Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available for sale, at fair value (cost: 2026—$254,538; 2025—$246,579)	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: 2026—$254,538; 2025—$246,579)	9,349	10,113
Fair Value, Recurring [Member] \| Collateralized Mortgage-Backed Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available for sale, at fair value (cost: 2026—$254,538; 2025—$246,579)	0	0
Fair Value, Recurring [Member] \| Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member]
Securities available for sale, at fair value (cost: 2026—$254,538; 2025—$246,579)	152,622	152,309
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: 2026—$254,538; 2025—$246,579)	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: 2026—$254,538; 2025—$246,579)	152,622	152,309
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: 2026—$254,538; 2025—$246,579)	0	0
Fair Value, Recurring [Member] \| Private Equity Funds [Member]
Securities available for sale, at fair value (cost: 2026—$254,538; 2025—$246,579)	5,027	5,519
Fair Value, Recurring [Member] \| Private Equity Funds [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available for sale, at fair value (cost: 2026—$254,538; 2025—$246,579)	0	0
Fair Value, Recurring [Member] \| Private Equity Funds [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, at fair value (cost: 2026—$254,538; 2025—$246,579)	5,027	5,519
Fair Value, Recurring [Member] \| Private Equity Funds [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available for sale, at fair value (cost: 2026—$254,538; 2025—$246,579)	0	0
Fair Value, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member]
Securities available for sale, at fair value (cost: 2026—$254,538; 2025—$246,579)	60,925	54,107
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: 2026—$254,538; 2025—$246,579)	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: 2026—$254,538; 2025—$246,579)	60,925	54,107
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: 2026—$254,538; 2025—$246,579)	0	0
Fair Value, Recurring [Member] \| Other Debt Obligations [Member]
Securities available for sale, at fair value (cost: 2026—$254,538; 2025—$246,579)	9,425	8,800
Fair Value, Recurring [Member] \| Other Debt Obligations [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities available for sale, at fair value (cost: 2026—$254,538; 2025—$246,579)	0	0
Fair Value, Recurring [Member] \| Other Debt Obligations [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities available for sale, at fair value (cost: 2026—$254,538; 2025—$246,579)	9,425	8,800
Fair Value, Recurring [Member] \| Other Debt Obligations [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities available for sale, at fair value (cost: 2026—$254,538; 2025—$246,579)	$ 0	$ 0