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Regulatory & Capital Matters - Capital Levels and Industry Defined Regulatory Minimums (Details)
$ in Thousands
Jun. 30, 2023
USD ($)
Dec. 31, 2022
USD ($)
Common equity tier 1 capital to risk weighted assets    
Actual $ 503,459 $ 457,206
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable $ 342,489 $ 330,966
Common equity tier 1 capital to risk weighted assets, Ratio    
Actual (as a percent) 0.1029% 0.0967%
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent) 7.00% 0.07%
Total capital to risk weighted assets, Amount    
Actual at period end $ 643,871 $ 592,039
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable $ 513,727 $ 496,518
Total capital to risk weighted assets, Ratio    
Risk-based capital ratio (as a percent) 0.1316 0.1252
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent) 0.1050 0.1050
Tier 1 capital to risk weighted assets, Amount    
Actual $ 528,459 $ 482,206
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable $ 415,917 $ 401,838
Tier 1 capital to risk weighted assets, Ratio    
Actual (as a percent) 0.1080 0.1020
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent) 0.0850 0.0850
Tier 1 capital to average assets, Amount    
Actual $ 528,459 $ 482,206
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable $ 235,919 $ 236,956
Tier 1 capital to average assets, Ratio    
Tier 1 capital leverage ratio (as a percent) 0.0896 0.0814
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent) 0.0400 0.0400
Subsidiaries [Member]    
Common equity tier 1 capital to risk weighted assets    
Actual $ 571,923 $ 552,404
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable 342,176 330,498
Minimum Required to Be Well Capitalized $ 317,735 $ 306,891
Common equity tier 1 capital to risk weighted assets, Ratio    
Actual (as a percent) 0.117% 0.117%
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent) 7.00% 0.07%
Minimum Required to Be Well Capitalized (as a percent) 6.50% 6.50%
Total capital to risk weighted assets, Amount    
Actual at period end $ 627,335 $ 602,237
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable 513,407 495,960
Minimum Required to Be Well Capitalized $ 488,959 $ 472,343
Total capital to risk weighted assets, Ratio    
Risk-based capital ratio (as a percent) 0.1283 0.1275
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent) 0.1050 0.1050
Minimum Required to Be Well Capitalized (as a percent) 0.1000 0.1000
Tier 1 capital to risk weighted assets, Amount    
Actual $ 571,923 $ 552,404
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable 415,500 401,319
Minimum Required to Be Well Capitalized $ 391,058 $ 377,712
Tier 1 capital to risk weighted assets, Ratio    
Actual (as a percent) 0.1170 0.1170
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent) 0.0850 0.0850
Minimum Required to Be Well Capitalized (as a percent) 0.0800 0.0800
Tier 1 capital to average assets, Amount    
Actual $ 571,923 $ 552,404
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable 235,845 237,083
Minimum Required to Be Well Capitalized $ 294,806 $ 296,354
Tier 1 capital to average assets, Ratio    
Tier 1 capital leverage ratio (as a percent) 0.0970 0.0932
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent) 0.0400 0.0400
Minimum Required to Be Well Capitalized (as a percent) 0.0500 0.0500