v3.26.1
Regulatory matters - Schedule of Bank's Capital Amounts and Ratios (Details)
$ in Thousands
Jun. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
Company    
Common equity Tier 1 capital to risk-weighted assets    
Common equity Tier 1 capital to risk-weighted assets, Actual Amount $ 461,224 $ 440,852
Common equity Tier 1 capital to risk-weighted assets, Actual Ratio 10.87 11.03
Common equity Tier 1 capital to risk-weighted assets, Minimum For Capital Adequacy Purposes Amount $ 190,871 $ 179,784
Common equity Tier 1 capital to risk-weighted assets, Minimum For Capital Adequacy Purposes Ratio 4.5 4.5
Tier 1 capital to risk-weighted assets    
Tier 1 capital to risk-weighted assets, Actual Amount $ 471,224 $ 450,852
Tier 1 capital to risk-weighted assets, Actual Ratio 11.1 11.28
Tier 1 capital to risk-weighted assets, Minimum For Capital Adequacy Purposes Amount $ 254,495 $ 239,712
Tier 1 capital to risk-weighted assets, Minimum For Capital Adequacy Purposes Ratio 6 6
Total capital to risk-weighted assets    
Total capital to risk-weighted assets, Actual Amount $ 596,721 $ 571,887
Total capital to risk-weighted assets, Actual Ratio 14.06 14.31
Total capital to risk-weighted assets, Minimum For Capital Adequacy Purposes Amount $ 339,327 $ 319,617
Total capital to risk-weighted assets, Minimum For Capital Adequacy Purposes Ratio 8 8
Tier 1 capital to average assets    
Tier 1 capital to average assets, Actual Amount $ 471,224 $ 450,852
Tier 1 capital to average assets, Actual Ratio 9.11 8.84
Tier 1 capital to average assets, Minimum For Capital Adequacy Purposes Amount $ 206,912 $ 204,039
Tier 1 capital to average assets, Minimum For Capital Adequacy Purposes Ratio 4 4
Bank    
Common equity Tier 1 capital to risk-weighted assets    
Common equity Tier 1 capital to risk-weighted assets, Actual Amount $ 540,099 $ 520,587
Common equity Tier 1 capital to risk-weighted assets, Actual Ratio 12.75 13.06
Common equity Tier 1 capital to risk-weighted assets, Minimum For Capital Adequacy Purposes Amount $ 190,569 $ 179,427
Common equity Tier 1 capital to risk-weighted assets, Minimum For Capital Adequacy Purposes Ratio 4.5 4.5
Common equity Tier 1 capital to risk-weighted assets, Minimum to be Well Capitalized under Prompt Corrective Action Provisions Amount $ 275,266 $ 259,172
Common equity Tier 1 capital to risk-weighted assets, Minimum to be Well Capitalized under Prompt Corrective Action Provisions Ratio 6.5 6.5
Tier 1 capital to risk-weighted assets    
Tier 1 capital to risk-weighted assets, Actual Amount $ 540,099 $ 520,587
Tier 1 capital to risk-weighted assets, Actual Ratio 12.75 13.06
Tier 1 capital to risk-weighted assets, Minimum For Capital Adequacy Purposes Amount $ 254,092 $ 239,236
Tier 1 capital to risk-weighted assets, Minimum For Capital Adequacy Purposes Ratio 6 6
Tier 1 capital to risk-weighted assets, Minimum to be Well Capitalized under Prompt Corrective Action Provisions Amount $ 338,790 $ 318,981
Tier 1 capital to risk-weighted assets, Minimum to be Well Capitalized under Prompt Corrective Action Provisions Ratio 8 8
Total capital to risk-weighted assets    
Total capital to risk-weighted assets, Actual Amount $ 582,204 $ 558,435
Total capital to risk-weighted assets, Actual Ratio 13.74 14.01
Total capital to risk-weighted assets, Minimum For Capital Adequacy Purposes Amount $ 338,790 $ 318,981
Total capital to risk-weighted assets, Minimum For Capital Adequacy Purposes Ratio 8 8
Total capital to risk-weighted assets, Minimum to be Well Capitalized under Prompt Corrective Action Provisions Amount $ 423,487 $ 398,726
Total capital to risk-weighted assets, Minimum to be Well Capitalized under Prompt Corrective Action Provisions Ratio 10 10
Tier 1 capital to average assets    
Tier 1 capital to average assets, Actual Amount $ 540,099 $ 520,587
Tier 1 capital to average assets, Actual Ratio 10.46 10.22
Tier 1 capital to average assets, Minimum For Capital Adequacy Purposes Amount $ 206,593 $ 203,726
Tier 1 capital to average assets, Minimum For Capital Adequacy Purposes Ratio 4 4
Tier 1 capital to average assets, Minimum to be Well Capitalized under Prompt Corrective Action Provisions Amount $ 258,241 $ 254,658
Tier 1 capital to average assets, Minimum to be Well Capitalized under Prompt Corrective Action Provisions Ratio 5 5