v3.26.1
Loans and Allowance for Credit Losses - Schedule of Classes of the Loan Portfolio Summarized by the Aggregate Risk Rating and Performance Status (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year $ 207,550   $ 207,550   $ 239,668
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 224,783   224,783   284,897
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 264,291   264,291   309,621
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 288,968   288,968   351,495
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 328,209   328,209   286,814
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 850,960   850,960   637,638
Financing Receivable, Revolving 235,538   235,538   222,344
Loans 2,400,299   2,400,299   2,332,477
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff     0   33
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff     0   27
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff     8   61
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff     37   18
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff     88   0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff     7   54
Financing Receivable, Revolving, Writeoff     134   230
Financing Receivable, Allowance for Credit Loss, Writeoff 192 $ 86 274 $ 171 423
Pass          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 162,271   162,271   168,392
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 158,886   158,886   242,876
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 229,622   229,622   250,702
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 232,133   232,133   250,019
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 236,456   236,456   236,472
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 653,492   653,492   477,843
Financing Receivable, Revolving 103,540   103,540   89,114
Loans 1,776,400   1,776,400   1,715,418
Special Mention          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 8,043   8,043   979
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 3,456   3,456   2,262
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 2,555   2,555   3,004
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 5,970   5,970   14,355
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 11,829   11,829   9,640
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 39,984   39,984   29,657
Financing Receivable, Revolving 12,261   12,261   8,875
Loans 84,098   84,098   68,772
Substandard          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 0   0   153
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 151   151   105
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0   0   988
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 641   641   5,082
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 4,613   4,613   421
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 4,961   4,961   4,961
Financing Receivable, Revolving 1,348   1,348   1,460
Loans 11,714   11,714   13,170
Performing Loans          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 37,236   37,236   70,144
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 62,290   62,290   39,423
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 31,968   31,968   54,927
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 50,224   50,224   81,404
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 74,488   74,488   40,281
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 150,872   150,872   123,704
Financing Receivable, Revolving 117,824   117,824   122,381
Loans 524,902   524,902   532,264
Nonperforming Loans          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 0   0   0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0   231
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 146   146   0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0   0   635
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 823   823   0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 1,651   1,651   1,473
Financing Receivable, Revolving 565   565   514
Loans 3,185   3,185   2,853
Commercial real estate          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans 1,333,050   1,333,050   1,273,813
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff     0    
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff     0    
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff     0    
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff     32    
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff     88    
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff     0    
Financing Receivable, Revolving, Writeoff     0    
Financing Receivable, Allowance for Credit Loss, Writeoff 120 0 120 0  
Commercial real estate | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 115,019   115,019   84,156
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 84,344   84,344   172,938
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 168,274   168,274   185,544
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 177,430   177,430   206,071
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 194,996   194,996   175,888
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 556,343   556,343   422,492
Financing Receivable, Revolving 36,644   36,644   26,724
Loans 1,333,050   1,333,050   1,273,813
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff         0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff         0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff         0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff         0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff         0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff         32
Financing Receivable, Revolving, Writeoff         0
Financing Receivable, Allowance for Credit Loss, Writeoff     120   32
Commercial real estate | Pass | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 107,781   107,781   83,583
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 81,079   81,079   171,026
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 166,024   166,024   182,864
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 175,309   175,309   199,094
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 189,826   189,826   166,194
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 516,415   516,415   392,397
Financing Receivable, Revolving 35,491   35,491   25,109
Loans 1,271,925   1,271,925   1,220,267
Commercial real estate | Special Mention | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 7,238   7,238   420
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 3,114   3,114   1,807
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 2,250   2,250   2,386
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 2,121   2,121   4,485
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 3,007   3,007   9,367
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 35,732   35,732   25,923
Financing Receivable, Revolving 1,153   1,153   1,615
Loans 54,615   54,615   46,003
Commercial real estate | Substandard | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 0   0   153
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 151   151   105
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0   0   294
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0   0   2,492
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 2,163   2,163   327
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 4,196   4,196   4,172
Financing Receivable, Revolving 0   0   0
Loans 6,510   6,510   7,543
Residential mortgage          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans 602,738   602,738   599,051
Financing Receivable, Allowance for Credit Loss, Writeoff 0 0 0 0  
Residential mortgage | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 17,081   17,081   37,407
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 37,189   37,189   30,001
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 29,824   29,824   35,255
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 34,612   34,612   25,347
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 23,525   23,525   37,832
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 86,949   86,949   57,110
Financing Receivable, Revolving 1,437   1,437   953
Loans 230,617   230,617   223,905
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff         19
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff         0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff         0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff         0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff         0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff         0
Financing Receivable, Revolving, Writeoff         0
Financing Receivable, Allowance for Credit Loss, Writeoff         19
Residential mortgage | Performance Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 18,035   18,035   40,566
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 45,991   45,991   33,772
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 30,620   30,620   53,484
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 49,442   49,442   80,523
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 74,070   74,070   39,877
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 149,373   149,373   121,767
Financing Receivable, Revolving 4,590   4,590   5,157
Loans 372,121   372,121   375,146
Residential mortgage | Pass | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 16,740   16,740   37,231
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 37,111   37,111   29,754
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 29,584   29,584   34,884
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 30,929   30,929   23,227
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 21,718   21,718   37,692
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 84,018   84,018   54,050
Financing Receivable, Revolving 1,437   1,437   953
Loans 221,537   221,537   217,791
Residential mortgage | Special Mention | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 341   341   176
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 78   78   247
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 240   240   140
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 3,455   3,455   304
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 82   82   140
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 2,669   2,669   2,789
Financing Receivable, Revolving 0   0   0
Loans 6,865   6,865   3,796
Residential mortgage | Substandard | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 0   0   0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0   0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0   0   231
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 228   228   1,816
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 1,725   1,725   0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 262   262   271
Financing Receivable, Revolving 0   0   0
Loans 2,215   2,215   2,318
Residential mortgage | Performing Loans | Performance Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 18,035   18,035   40,566
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 45,991   45,991   33,541
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 30,474   30,474   53,484
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 49,442   49,442   79,888
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 73,250   73,250   39,877
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 147,726   147,726   120,302
Financing Receivable, Revolving 4,590   4,590   5,157
Loans 369,508   369,508   372,815
Residential mortgage | Nonperforming Loans | Performance Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 0   0   0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0   231
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 146   146   0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0   0   635
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 820   820   0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 1,647   1,647   1,465
Financing Receivable, Revolving 0   0   0
Loans 2,613   2,613   2,331
Commercial and industrial          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans 217,151   217,151   205,452
Financing Receivable, Allowance for Credit Loss, Writeoff 0 0 0 14  
Commercial and industrial | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 27,388   27,388   21,308
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 18,145   18,145   23,089
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 21,662   21,662   17,891
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 15,246   15,246   25,763
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 23,201   23,201   31,051
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 52,240   52,240   31,584
Financing Receivable, Revolving 59,269   59,269   54,766
Loans 217,151   217,151   205,452
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff         0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff         0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff         0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff         0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff         0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff         14
Financing Receivable, Revolving, Writeoff         0
Financing Receivable, Allowance for Credit Loss, Writeoff         14
Commercial and industrial | Pass | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 26,924   26,924   20,925
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 17,881   17,881   22,881
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 21,597   21,597   16,950
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 14,439   14,439   20,101
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 18,094   18,094   30,917
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 50,252   50,252   30,588
Financing Receivable, Revolving 47,054   47,054   46,211
Loans 196,241   196,241   188,573
Commercial and industrial | Special Mention | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 464   464   383
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 264   264   208
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 65   65   478
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 394   394   4,888
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 4,382   4,382   40
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 1,490   1,490   483
Financing Receivable, Revolving 10,871   10,871   7,100
Loans 17,930   17,930   13,580
Commercial and industrial | Substandard | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 0   0   0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0   0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0   0   463
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 413   413   774
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 725   725   94
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 498   498   513
Financing Receivable, Revolving 1,344   1,344   1,455
Loans 2,980   2,980   3,299
Home equity lines of credit          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans 122,164   122,164   127,341
Financing Receivable, Allowance for Credit Loss, Writeoff 0 0 0 0  
Home equity lines of credit | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 0   0   0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0   0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0   0   485
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 479   479   84
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 80   80   122
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 267   267   153
Financing Receivable, Revolving 9,673   9,673   11,139
Loans 10,499   10,499   11,983
Home equity lines of credit | Performance Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 0   0   0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0   0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0   0   13
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 11   11   29
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 27   27   0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 1,742   1,742   1,989
Financing Receivable, Revolving 109,885   109,885   113,327
Loans 111,665   111,665   115,358
Home equity lines of credit | Pass | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 0   0   0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0   0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0   0   485
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 479   479   84
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 80   80   29
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 169   169   51
Financing Receivable, Revolving 9,432   9,432   10,974
Loans 10,160   10,160   11,623
Home equity lines of credit | Special Mention | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 0   0   0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0   0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0   0   0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0   0   0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 0   0   93
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 93   93   97
Financing Receivable, Revolving 237   237   160
Loans 330   330   350
Home equity lines of credit | Substandard | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 0   0   0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0   0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0   0   0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0   0   0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 0   0   0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 5   5   5
Financing Receivable, Revolving 4   4   5
Loans 9   9   10
Home equity lines of credit | Performing Loans | Performance Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 0   0   0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0   0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0   0   13
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 11   11   29
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 27   27   0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 1,742   1,742   1,989
Financing Receivable, Revolving 109,320   109,320   112,813
Loans 111,100   111,100   114,844
Home equity lines of credit | Nonperforming Loans | Performance Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 0   0   0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0   0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0   0   0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0   0   0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 0   0   0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 0   0   0
Financing Receivable, Revolving 565   565   514
Loans 565   565   514
Real estate construction          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans 115,091   115,091   116,680
Financing Receivable, Allowance for Credit Loss, Writeoff 0 0 0 0  
Real estate construction | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 10,826   10,826   26,653
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 22,815   22,815   19,215
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 12,417   12,417   15,519
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 10,977   10,977   12,191
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 11,096   11,096   1,640
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 2,638   2,638   1,122
Financing Receivable, Revolving 10,126   10,126   5,867
Loans 80,895   80,895   82,207
Real estate construction | Performance Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 17,619   17,619   27,937
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 14,832   14,832   4,650
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 497   497   553
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 161   161   362
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 351   351   144
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 735   735   826
Financing Receivable, Revolving 1   1   1
Loans 34,196   34,196   34,473
Real estate construction | Pass | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 10,826   10,826   26,653
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 22,815   22,815   19,215
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 12,417   12,417   15,519
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 10,977   10,977   7,513
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 6,738   6,738   1,640
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 2,638   2,638   757
Financing Receivable, Revolving 10,126   10,126   5,867
Loans 76,537   76,537   77,164
Real estate construction | Special Mention | Internally Risk Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 0   0   0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0   0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0   0   0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0   0   4,678
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 4,358   4,358   0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 0   0   365
Financing Receivable, Revolving 0   0   0
Loans 4,358   4,358   5,043
Real estate construction | Performing Loans | Performance Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 17,619   17,619   27,937
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 14,832   14,832   4,650
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 497   497   553
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 161   161   362
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 351   351   144
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 735   735   826
Financing Receivable, Revolving 1   1   1
Loans 34,196   34,196   34,473
Consumer          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans 10,105   10,105   10,140
Financing Receivable, Allowance for Credit Loss, Writeoff 72 $ 86 154 $ 157  
Consumer | Performance Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 1,582   1,582   1,641
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 1,467   1,467   1,232
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 997   997   877
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 610   610   1,125
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 863   863   260
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 673   673   595
Financing Receivable, Revolving 3,913   3,913   4,410
Loans 10,105   10,105   10,140
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff     0   14
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff     0   27
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff     8   61
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff     5   18
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff     0   0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff     7   8
Financing Receivable, Revolving, Writeoff     134   230
Financing Receivable, Allowance for Credit Loss, Writeoff     154   358
Consumer | Performing Loans | Performance Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 1,582   1,582   1,641
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 1,467   1,467   1,232
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 997   997   877
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 610   610   1,125
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 860   860   260
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 669   669   587
Financing Receivable, Revolving 3,913   3,913   4,410
Loans 10,098   10,098   10,132
Consumer | Nonperforming Loans | Performance Rated          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Year One, Originated, Current Fiscal Year 0   0   0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0   0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0   0   0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0   0   0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 3   3   0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 4   4   8
Financing Receivable, Revolving 0   0   0
Loans $ 7   $ 7   $ 8