v3.26.1
Allowance for Credit Losses - Loans - Commercial and commercial real estate loan portfolios (Details) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]              
Total loans   $ 1,015,014,000     $ 1,015,014,000   $ 1,032,727,000
Current period gross charge-offs, Total $ 2,800,000 63,000   $ 2,977,000 317,000 $ 3,081,000  
Other commercial real estate (non-owner occupied)              
Financing Receivable, Credit Quality Indicator [Line Items]              
Total loans   217,770,000     217,770,000   217,935,000
Current period gross charge-offs, Total       2,762,000   2,762,000  
Commercial Portfolio Segment              
Financing Receivable, Credit Quality Indicator [Line Items]              
2026/2025   28,564,000     28,564,000   82,731,000
2025/2024   85,182,000     85,182,000   93,980,000
2024/2023   81,516,000     81,516,000   127,208,000
2023/2022   117,971,000     117,971,000   77,173,000
2022/2021   70,443,000     70,443,000   105,185,000
Prior   288,537,000     288,537,000   198,209,000
Revolving Loans Amortized Cost Basis   62,521,000     62,521,000   60,587,000
Revolving Loans Converted to Term             5,035,000
Total loans   734,734,000     734,734,000   750,108,000
Current period gross charge-offs, 2023/2022         241,000   200,000
Current period gross charge-offs, 2022/2021             1,396,000
Current period gross charge-offs, Prior             3,323,000
Current period gross charge-offs, Total         241,000   4,919,000
Commercial Portfolio Segment | Commercial real estate (owner occupied)              
Financing Receivable, Credit Quality Indicator [Line Items]              
2026/2025   2,936,000     2,936,000   8,901,000
2025/2024   8,762,000     8,762,000   10,312,000
2024/2023   10,131,000     10,131,000   16,564,000
2023/2022   15,842,000     15,842,000   6,050,000
2022/2021   5,633,000     5,633,000   12,198,000
Prior   40,659,000     40,659,000   30,552,000
Revolving Loans Amortized Cost Basis   992,000     992,000   656,000
Total loans   84,955,000     84,955,000   85,233,000
Commercial Portfolio Segment | Commercial and industrial              
Financing Receivable, Credit Quality Indicator [Line Items]              
2026/2025   3,898,000     3,898,000   22,994,000
2025/2024   23,882,000     23,882,000   10,640,000
2024/2023   9,722,000     9,722,000   14,643,000
2023/2022   13,215,000     13,215,000   13,107,000
2022/2021   11,218,000     11,218,000   5,670,000
Prior   27,397,000     27,397,000   19,328,000
Revolving Loans Amortized Cost Basis   52,909,000     52,909,000   52,908,000
Revolving Loans Converted to Term             5,035,000
Total loans   142,241,000     142,241,000   144,325,000
Current period gross charge-offs, 2023/2022             200,000
Current period gross charge-offs, 2022/2021             1,396,000
Current period gross charge-offs, Prior             178,000
Current period gross charge-offs, Total       $ 200,000   $ 200,000 1,774,000
Commercial Portfolio Segment | Commercial real estate (non-owner occupied) - retail              
Financing Receivable, Credit Quality Indicator [Line Items]              
2026/2025   4,460,000     4,460,000   17,984,000
2025/2024   20,081,000     20,081,000   26,374,000
2024/2023   25,577,000     25,577,000   35,850,000
2023/2022   35,116,000     35,116,000   14,284,000
2022/2021   8,549,000     8,549,000   30,707,000
Prior   74,242,000     74,242,000   46,305,000
Revolving Loans Amortized Cost Basis   21,000     21,000   26,000
Total loans   168,046,000     168,046,000   171,530,000
Current period gross charge-offs, 2023/2022         241,000    
Current period gross charge-offs, Total     $ 241,000   241,000    
Commercial Portfolio Segment | Commercial real estate (non-owner occupied) - multi-family              
Financing Receivable, Credit Quality Indicator [Line Items]              
2026/2025   580,000     580,000   9,762,000
2025/2024   9,722,000     9,722,000   24,594,000
2024/2023   20,390,000     20,390,000   32,750,000
2023/2022   30,084,000     30,084,000   11,515,000
2022/2021   11,699,000     11,699,000   15,867,000
Prior   49,223,000     49,223,000   36,573,000
Revolving Loans Amortized Cost Basis   24,000     24,000   24,000
Total loans   121,722,000     121,722,000   131,085,000
Commercial Portfolio Segment | Other commercial real estate (non-owner occupied)              
Financing Receivable, Credit Quality Indicator [Line Items]              
2026/2025   16,690,000     16,690,000   23,090,000
2025/2024   22,735,000     22,735,000   22,060,000
2024/2023   15,696,000     15,696,000   27,401,000
2023/2022   23,714,000     23,714,000   32,217,000
2022/2021   33,344,000     33,344,000   40,743,000
Prior   97,016,000     97,016,000   65,451,000
Revolving Loans Amortized Cost Basis   8,575,000     8,575,000   6,973,000
Total loans   217,770,000     217,770,000   217,935,000
Current period gross charge-offs, Prior             3,145,000
Current period gross charge-offs, Total             3,145,000
Pass | Commercial Portfolio Segment              
Financing Receivable, Credit Quality Indicator [Line Items]              
2026/2025   28,564,000     28,564,000   82,731,000
2025/2024   85,182,000     85,182,000   93,980,000
2024/2023   81,516,000     81,516,000   126,793,000
2023/2022   117,810,000     117,810,000   76,686,000
2022/2021   69,992,000     69,992,000   102,084,000
Prior   276,258,000     276,258,000   187,212,000
Revolving Loans Amortized Cost Basis   59,041,000     59,041,000   57,946,000
Revolving Loans Converted to Term             5,010,000
Total loans   718,363,000     718,363,000   732,442,000
Pass | Commercial Portfolio Segment | Commercial real estate (owner occupied)              
Financing Receivable, Credit Quality Indicator [Line Items]              
2026/2025   2,936,000     2,936,000   8,901,000
2025/2024   8,762,000     8,762,000   10,312,000
2024/2023   10,131,000     10,131,000   16,564,000
2023/2022   15,842,000     15,842,000   6,050,000
2022/2021   5,633,000     5,633,000   9,460,000
Prior   37,063,000     37,063,000   29,511,000
Revolving Loans Amortized Cost Basis   741,000     741,000   433,000
Total loans   81,108,000     81,108,000   81,231,000
Pass | Commercial Portfolio Segment | Commercial and industrial              
Financing Receivable, Credit Quality Indicator [Line Items]              
2026/2025   3,898,000     3,898,000   22,994,000
2025/2024   23,882,000     23,882,000   10,640,000
2024/2023   9,722,000     9,722,000   14,643,000
2023/2022   13,215,000     13,215,000   12,800,000
2022/2021   10,937,000     10,937,000   5,307,000
Prior   26,495,000     26,495,000   18,626,000
Revolving Loans Amortized Cost Basis   49,680,000     49,680,000   50,490,000
Revolving Loans Converted to Term             5,010,000
Total loans   137,829,000     137,829,000   140,510,000
Pass | Commercial Portfolio Segment | Commercial real estate (non-owner occupied) - retail              
Financing Receivable, Credit Quality Indicator [Line Items]              
2026/2025   4,460,000     4,460,000   17,984,000
2025/2024   20,081,000     20,081,000   26,374,000
2024/2023   25,577,000     25,577,000   35,435,000
2023/2022   34,955,000     34,955,000   14,284,000
2022/2021   8,549,000     8,549,000   30,707,000
Prior   74,242,000     74,242,000   46,305,000
Revolving Loans Amortized Cost Basis   21,000     21,000   26,000
Total loans   167,885,000     167,885,000   171,115,000
Pass | Commercial Portfolio Segment | Commercial real estate (non-owner occupied) - multi-family              
Financing Receivable, Credit Quality Indicator [Line Items]              
2026/2025   580,000     580,000   9,762,000
2025/2024   9,722,000     9,722,000   24,594,000
2024/2023   20,390,000     20,390,000   32,750,000
2023/2022   30,084,000     30,084,000   11,515,000
2022/2021   11,699,000     11,699,000   15,867,000
Prior   48,278,000     48,278,000   34,378,000
Revolving Loans Amortized Cost Basis   24,000     24,000   24,000
Total loans   120,777,000     120,777,000   128,890,000
Pass | Commercial Portfolio Segment | Other commercial real estate (non-owner occupied)              
Financing Receivable, Credit Quality Indicator [Line Items]              
2026/2025   16,690,000     16,690,000   23,090,000
2025/2024   22,735,000     22,735,000   22,060,000
2024/2023   15,696,000     15,696,000   27,401,000
2023/2022   23,714,000     23,714,000   32,037,000
2022/2021   33,174,000     33,174,000   40,743,000
Prior   90,180,000     90,180,000   58,392,000
Revolving Loans Amortized Cost Basis   8,575,000     8,575,000   6,973,000
Total loans   210,764,000     210,764,000   210,696,000
Special Mention | Commercial Portfolio Segment              
Financing Receivable, Credit Quality Indicator [Line Items]              
Prior   5,486,000     5,486,000   5,725,000
Revolving Loans Amortized Cost Basis   2,213,000     2,213,000   1,463,000
Total loans   7,699,000     7,699,000   7,188,000
Special Mention | Commercial Portfolio Segment | Commercial real estate (owner occupied)              
Financing Receivable, Credit Quality Indicator [Line Items]              
Prior   491,000     491,000   520,000
Revolving Loans Amortized Cost Basis   223,000     223,000   223,000
Total loans   714,000     714,000   743,000
Special Mention | Commercial Portfolio Segment | Commercial and industrial              
Financing Receivable, Credit Quality Indicator [Line Items]              
Revolving Loans Amortized Cost Basis   1,990,000     1,990,000   1,240,000
Total loans   1,990,000     1,990,000   1,240,000
Special Mention | Commercial Portfolio Segment | Other commercial real estate (non-owner occupied)              
Financing Receivable, Credit Quality Indicator [Line Items]              
Prior   4,995,000     4,995,000   5,205,000
Total loans   4,995,000     4,995,000   5,205,000
Substandard | Commercial Portfolio Segment              
Financing Receivable, Credit Quality Indicator [Line Items]              
2024/2023             415,000
2023/2022   161,000     161,000   487,000
2022/2021   451,000     451,000   3,101,000
Prior   6,395,000     6,395,000   4,874,000
Revolving Loans Amortized Cost Basis   1,267,000     1,267,000   1,178,000
Revolving Loans Converted to Term             25,000
Total loans   8,274,000     8,274,000   10,080,000
Substandard | Commercial Portfolio Segment | Commercial real estate (owner occupied)              
Financing Receivable, Credit Quality Indicator [Line Items]              
2022/2021             2,738,000
Prior   3,105,000     3,105,000   521,000
Revolving Loans Amortized Cost Basis   28,000     28,000    
Total loans   3,133,000     3,133,000   3,259,000
Substandard | Commercial Portfolio Segment | Commercial and industrial              
Financing Receivable, Credit Quality Indicator [Line Items]              
2023/2022             307,000
2022/2021   281,000     281,000   363,000
Prior   504,000     504,000   304,000
Revolving Loans Amortized Cost Basis   1,239,000     1,239,000   1,178,000
Revolving Loans Converted to Term             25,000
Total loans   2,024,000     2,024,000   2,177,000
Substandard | Commercial Portfolio Segment | Commercial real estate (non-owner occupied) - retail              
Financing Receivable, Credit Quality Indicator [Line Items]              
2024/2023             415,000
2023/2022   161,000     161,000    
Total loans   161,000     161,000   415,000
Substandard | Commercial Portfolio Segment | Commercial real estate (non-owner occupied) - multi-family              
Financing Receivable, Credit Quality Indicator [Line Items]              
Prior   945,000     945,000   2,195,000
Total loans   945,000     945,000   2,195,000
Substandard | Commercial Portfolio Segment | Other commercial real estate (non-owner occupied)              
Financing Receivable, Credit Quality Indicator [Line Items]              
2023/2022             180,000
2022/2021   170,000     170,000    
Prior   1,841,000     1,841,000   1,854,000
Total loans   2,011,000     2,011,000   2,034,000
Doubtful | Commercial Portfolio Segment              
Financing Receivable, Credit Quality Indicator [Line Items]              
Prior   398,000     398,000   398,000
Total loans   398,000     398,000   398,000
Doubtful | Commercial Portfolio Segment | Commercial and industrial              
Financing Receivable, Credit Quality Indicator [Line Items]              
Prior   398,000     398,000   398,000
Total loans   $ 398,000     $ 398,000   $ 398,000