v3.25.4
Loans - Changes in Allowances for Credit Losses (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Balance at the beginning of period $ 25,709 $ 25,759
Provision increase (decrease) 177 1,874
Recoveries of previous charge-offs 1,836 1,381
Charge-offs originated current year 0 0
Charge-offs originated 1 year past (5) (20)
Charge-offs originated 2 year past (30) 0
Charge-offs originated 3 year past (13) (180)
Charge-offs originated 4 year past (26) (185)
Prior (745) (1,088)
Overdrafts and credit cards (1,607) (1,825)
Other 80 (7)
Allowances for expected credit losses at end of year 25,376 25,709
Commercial loans    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Balance at the beginning of period 11,684 11,248
Provision increase (decrease) 1,228 887
Recoveries of previous charge-offs 0 0
Charge-offs originated current year 0 0
Charge-offs originated 1 year past 0 0
Charge-offs originated 2 year past 0 0
Charge-offs originated 3 year past 0 0
Charge-offs originated 4 year past 0 0
Prior (551) (427)
Overdrafts and credit cards (18) (24)
Other 14 0
Allowances for expected credit losses at end of year 12,357 11,684
Commercial real estate loans    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Balance at the beginning of period 3,267 1,441
Provision increase (decrease) (2,085) 2,214
Recoveries of previous charge-offs 0 0
Charge-offs originated current year 0 0
Charge-offs originated 1 year past 0 0
Charge-offs originated 2 year past 0 0
Charge-offs originated 3 year past 0 (180)
Charge-offs originated 4 year past 0 (180)
Prior (84) (28)
Overdrafts and credit cards 0 0
Other 0 0
Allowances for expected credit losses at end of year 1,098 3,267
Consumer loans    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Balance at the beginning of period 3,254 3,096
Provision increase (decrease) 133 933
Recoveries of previous charge-offs 1,671 1,154
Charge-offs originated current year 0 0
Charge-offs originated 1 year past (5) (20)
Charge-offs originated 2 year past 0 0
Charge-offs originated 3 year past (13) 0
Charge-offs originated 4 year past (26) (5)
Prior (20) (100)
Overdrafts and credit cards (1,589) (1,801)
Other 10 (3)
Allowances for expected credit losses at end of year 3,415 3,254
Residential mortgage loans    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Balance at the beginning of period 7,504 9,974
Provision increase (decrease) 901 (2,160)
Recoveries of previous charge-offs 165 227
Charge-offs originated current year 0 0
Charge-offs originated 1 year past 0 0
Charge-offs originated 2 year past (30) 0
Charge-offs originated 3 year past 0 0
Charge-offs originated 4 year past 0 0
Prior (90) (533)
Overdrafts and credit cards 0 0
Other 56 (4)
Allowances for expected credit losses at end of year $ 8,506 $ 7,504