v3.26.3
Note 11 - Fair Value Measurement - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Jun. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Jun. 30, 2025
Dec. 31, 2024
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) $ 310,188   $ 270,310      
Servicing rights on sold loans, at fair value 2,776   3,014      
Servicing rights on sold loans 2,776   3,014      
Fair Value, Recurring [Member]            
Servicing rights on sold loans, at fair value 2,776   3,014      
Interest rate swap derivative - securities and loans 734          
Total assets measured at fair value 313,698   273,324      
Servicing rights on sold loans 2,776   3,014      
Interest rate swap derivative - securities and loans     1,703      
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member]            
Servicing rights on sold loans, at fair value 0   0      
Interest rate swap derivative - securities and loans 0          
Total assets measured at fair value 12,447   13,885      
Servicing rights on sold loans 0   0      
Interest rate swap derivative - securities and loans     0      
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]            
Servicing rights on sold loans, at fair value 0   0      
Interest rate swap derivative - securities and loans 734          
Total assets measured at fair value 289,241   249,826      
Servicing rights on sold loans 0   0      
Interest rate swap derivative - securities and loans     1,703      
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member]            
Servicing rights on sold loans, at fair value 2,776 $ 3,012 3,014 $ 3,093 $ 3,220 $ 3,281
Interest rate swap derivative - securities and loans 0          
Total assets measured at fair value 12,010   9,613      
Servicing rights on sold loans 2,776 $ 3,012 3,014 $ 3,093 $ 3,220 $ 3,281
Interest rate swap derivative - securities and loans     0      
US States and Political Subdivisions Debt Securities [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 72,758   80,252      
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 72,758   80,252      
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 10,490   11,908      
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 62,268   68,344      
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 0   0      
US Government Agencies Debt Securities [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 11,170   11,943      
US Government Agencies Debt Securities [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 11,170   11,943      
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 0   0      
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 11,170   11,943      
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 0   0      
Corporate Issued Asset-backed Securities [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 21,088   7,961      
Corporate Issued Asset-backed Securities [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 21,088   7,961      
Corporate Issued Asset-backed Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 0   0      
Corporate Issued Asset-backed Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 21,088   7,961      
Corporate Issued Asset-backed Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 0   0      
Corporate Debt Securities [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 60,191   38,801      
Corporate Debt Securities [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 60,191   38,801      
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 1,957   1,977      
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 58,234   36,824      
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 0   0      
US Small Business Administration Securities [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 4,923   6,293      
US Small Business Administration Securities [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 4,923   6,293      
US Small Business Administration Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 0   0      
US Small Business Administration Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 4,923   6,293      
US Small Business Administration Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 0   0      
Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 91,217   91,656      
Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 91,217   91,656      
Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 0   0      
Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 91,217   91,656      
Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 0   0      
Mortgage-Backed Securities, Issued by Private Enterprises [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 48,841   33,404      
Mortgage-Backed Securities, Issued by Private Enterprises [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 48,841   33,404      
Mortgage-Backed Securities, Issued by Private Enterprises [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 0   0      
Mortgage-Backed Securities, Issued by Private Enterprises [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) 39,607   26,805      
Mortgage-Backed Securities, Issued by Private Enterprises [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member]            
Investment securities available for sale, at fair value (amortized cost of $348,325 and $295,849, respectively) $ 9,234   $ 6,599