v3.26.1
Regulatory matters - Schedule of Bank's Capital Amounts and Ratios (Details)
$ in Thousands
Mar. 31, 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 $ 450,966 $ 440,852
Common equity Tier 1 capital to risk-weighted assets, Actual Ratio 10.96 11.03
Common equity Tier 1 capital to risk-weighted assets, Minimum For Capital Adequacy Purposes Amount $ 185,296 $ 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 $ 460,966 $ 450,852
Tier 1 capital to risk-weighted assets, Actual Ratio 11.2 11.28
Tier 1 capital to risk-weighted assets, Minimum For Capital Adequacy Purposes Amount $ 247,062 $ 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 $ 582,785 $ 571,887
Total capital to risk-weighted assets, Actual Ratio 14.16 14.31
Total capital to risk-weighted assets, Minimum For Capital Adequacy Purposes Amount $ 329,416 $ 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 $ 460,966 $ 450,852
Tier 1 capital to average assets, Actual Ratio 9.03 8.84
Tier 1 capital to average assets, Minimum For Capital Adequacy Purposes Amount $ 204,234 $ 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 $ 532,086 $ 520,587
Common equity Tier 1 capital to risk-weighted assets, Actual Ratio 12.95 13.06
Common equity Tier 1 capital to risk-weighted assets, Minimum For Capital Adequacy Purposes Amount $ 184,882 $ 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 $ 267,051 $ 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 $ 532,086 $ 520,587
Tier 1 capital to risk-weighted assets, Actual Ratio 12.95 13.06
Tier 1 capital to risk-weighted assets, Minimum For Capital Adequacy Purposes Amount $ 246,509 $ 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 $ 328,679 $ 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 $ 570,616 $ 558,435
Total capital to risk-weighted assets, Actual Ratio 13.89 14.01
Total capital to risk-weighted assets, Minimum For Capital Adequacy Purposes Amount $ 328,679 $ 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 $ 410,848 $ 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 $ 532,086 $ 520,587
Tier 1 capital to average assets, Actual Ratio 10.42 10.22
Tier 1 capital to average assets, Minimum For Capital Adequacy Purposes Amount $ 204,233 $ 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 $ 255,292 $ 254,658
Tier 1 capital to average assets, Minimum to be Well Capitalized under Prompt Corrective Action Provisions Ratio 5 5