v3.26.1
Borrowings - Long-term debt advances (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Debt Instrument    
Total FHLB long-term debt $ 134,862 $ 134,496
Less net fair value discount (112) (144)
Total long-term debt $ 134,750 134,352
Long-term 4.78% fixed rate debt instrument due March 2026    
Debt Instrument    
Fixed interest rate (as a percent) 4.78%  
Total long-term debt   4,292
Long-term 4.20% fixed rate debt due March 2026    
Debt Instrument    
Fixed interest rate (as a percent) 4.20%  
Total long-term debt   15,000
Long-term 4.08% fixed rate debt instrument due May 2026    
Debt Instrument    
Fixed interest rate (as a percent) 4.08%  
Total long-term debt $ 5,000 5,000
Long-term 3.98% fixed rate debt instrument due August 2026    
Debt Instrument    
Fixed interest rate (as a percent) 3.98%  
Total long-term debt $ 12,047 12,047
Long-term 3.95% fixed rate debt instrument due October 2026    
Debt Instrument    
Fixed interest rate (as a percent) 3.95%  
Total long-term debt $ 15,284 15,284
Long-term 3.89% fixed rate debt instrument due March 2027    
Debt Instrument    
Fixed interest rate (as a percent) 3.89%  
Total long-term debt $ 10,000  
Long-term 3.51% fixed rate debt instrument due March 2027    
Debt Instrument    
Fixed interest rate (as a percent) 3.51%  
Total long-term debt $ 12,198 12,198
Long-term 4.16% fixed rate debt instrument due June 2027    
Debt Instrument    
Fixed interest rate (as a percent) 4.16%  
Total long-term debt $ 5,224 5,224
Long-term 4.01% fixed rate debt instrument due July 2027    
Debt Instrument    
Fixed interest rate (as a percent) 4.01%  
Total long-term debt $ 21,773 21,773
Long-term 4.40% fixed rate debt instrument due August 2027    
Debt Instrument    
Fixed interest rate (as a percent) 4.40%  
Total long-term debt $ 6,461 6,461
Long-term 5.29% fixed rate debt instrument due October 2027    
Debt Instrument    
Fixed interest rate (as a percent) 5.29%  
Total long-term debt $ 2,275 2,617
Long-term 5.18% fixed rate debt instrument due October 2027    
Debt Instrument    
Fixed interest rate (as a percent) 5.18%  
Total long-term debt $ 5,475 5,475
Long-term 3.61% fixed rate debt instrument due November 2027    
Debt Instrument    
Fixed interest rate (as a percent) 3.61%  
Total long-term debt $ 14,937 14,937
Long-term 3.95% fixed rate debt instrument due January 2028    
Debt Instrument    
Fixed interest rate (as a percent) 3.95%  
Total long-term debt $ 10,000  
Long-term 4.45% fixed rate debt instrument due March 2028    
Debt Instrument    
Fixed interest rate (as a percent) 4.45%  
Total long-term debt $ 14,188 $ 14,188