v3.26.1
Loans and Allowance for Credit Losses - By Risk Rating and Year of Origination (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Total gross      
2026/2025 $ 6,839,878   $ 31,654,464
2025/2024 30,198,628   29,731,578
2024/2023 25,683,539   15,422,108
2023/2022 13,818,766   34,094,421
2022/2021 33,591,771   12,514,047
Prior 68,720,291   60,367,066
Revolving 7,425,238   6,930,038
Total 186,278,111   190,713,722
Current year-to-date gross write-offs      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   72,030
Prior 25,877   8,527
Revolving 0   0
Total 25,877 $ 0 80,557
Real estate | One to four family residential      
Total gross      
2026/2025 2,454,676   13,673,316
2025/2024 12,732,865   19,779,834
2024/2023 17,242,789   7,998,043
2023/2022 6,944,619   30,001,104
2022/2021 29,730,034   10,818,144
Prior 55,984,399   47,402,452
Revolving 0   0
Total 125,089,382   129,672,893
Current year-to-date gross write-offs      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   686
Revolving 0   0
Total 0 0 686
Real estate | One to four family residential | Performing      
Total gross      
2026/2025 2,454,676   13,673,316
2025/2024 12,732,865   19,779,834
2024/2023 17,242,789   7,998,043
2023/2022 6,944,619   30,001,104
2022/2021 29,730,034   10,818,144
Prior 55,984,399   47,107,895
Revolving 0   0
Total 125,089,382   129,378,336
Real estate | One to four family residential | Non performing      
Total gross      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   294,557
Revolving 0   0
Total 0   294,557
Real estate | Home equity      
Total gross      
2026/2025 71,478   301,733
2025/2024 294,438   807,240
2024/2023 710,454   465,994
2023/2022 415,789   286,981
2022/2021 278,170   15,261
Prior 106,875   97,992
Revolving 0   0
Total 1,877,204   1,975,201
Current year-to-date gross write-offs      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0 0 0
Real estate | Home equity | Performing      
Total gross      
2026/2025 71,478   301,733
2025/2024 294,438   807,240
2024/2023 710,454   465,994
2023/2022 415,789   286,981
2022/2021 278,170   15,261
Prior 106,875   97,992
Revolving 0   0
Total 1,877,204   1,975,201
Real estate | Home equity | Non performing      
Total gross      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0   0
Real estate | Equity line of credit      
Total gross      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 7,425,238   6,930,038
Total 7,425,238   6,930,038
Current year-to-date gross write-offs      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0 0 0
Real estate | Equity line of credit | Performing      
Total gross      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 7,425,238   6,930,038
Total 7,425,238   6,930,038
Real estate | Equity line of credit | Non performing      
Total gross      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0   0
Real estate | Construction      
Total gross      
2026/2025 881,022   9,384,639
2025/2024 9,476,425   2,475,561
2024/2023 1,413,870   119,018
2023/2022 117,463   62,686
2022/2021 61,654   0
Prior 130,109   133,176
Revolving 0   0
Total 12,080,543   12,175,080
Current year-to-date gross write-offs      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0 0 0
Real estate | Construction | Performing      
Total gross      
2026/2025 881,022   9,384,639
2025/2024 9,476,425   2,475,561
2024/2023 1,413,870   119,018
2023/2022 117,463   62,686
2022/2021 61,654   0
Prior 130,109   133,176
Revolving 0   0
Total 12,080,543   12,175,080
Real estate | Construction | Non performing      
Total gross      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0   0
Real estate | Multi-family      
Total gross      
2026/2025 913,222   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   201,072
Prior 301,279   866,900
Revolving 0   0
Total 1,214,501   1,067,972
Current year-to-date gross write-offs      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0 0 0
Real estate | Multi-family | Pass      
Total gross      
2026/2025 913,222   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   201,072
Prior 301,279   866,900
Revolving 0   0
Total 1,214,501   1,067,972
Real estate | Multi-family | Special mention      
Total gross      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0   0
Real estate | Multi-family | Substandard      
Total gross      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0   0
Real estate | Multi-family | Doubtful      
Total gross      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0   0
Real estate | Commercial      
Total gross      
2026/2025 0   59,001
2025/2024 58,697   476,965
2024/2023 473,532   143,525
2023/2022 141,286   978,898
2022/2021 969,137   224,550
Prior 268,818   54,026
Revolving 0   0
Total 1,911,470   1,936,965
Current year-to-date gross write-offs      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0 0 0
Real estate | Commercial | Pass      
Total gross      
2026/2025 0   59,001
2025/2024 58,697   476,965
2024/2023 473,532   143,525
2023/2022 141,286   978,898
2022/2021 969,137   224,550
Prior 268,818   54,026
Revolving 0   0
Total 1,911,470   1,936,965
Real estate | Commercial | Special mention      
Total gross      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0   0
Real estate | Commercial | Substandard      
Total gross      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0   0
Real estate | Commercial | Doubtful      
Total gross      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0   0
Commercial installment      
Total gross      
2026/2025 759,960   1,284,063
2025/2024 1,186,277   120,517
2024/2023 115,753   164,205
2023/2022 159,661   220,173
2022/2021 207,763   757,869
Prior 1,423,165   958,418
Revolving 0   0
Total 3,852,579   3,505,245
Current year-to-date gross write-offs      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0   0
Commercial installment | Pass      
Total gross      
2026/2025 759,960   1,284,063
2025/2024 1,186,277   120,517
2024/2023 115,753   164,205
2023/2022 159,661   220,173
2022/2021 207,763   757,869
Prior 1,423,165   958,418
Revolving 0   0
Total 3,852,579   3,505,245
Commercial installment | Special mention      
Total gross      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0   0
Commercial installment | Substandard      
Total gross      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0   0
Commercial installment | Doubtful      
Total gross      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0   0
Commercial installment | Commercial      
Current year-to-date gross write-offs      
Total 0 0  
Consumer | Marine and recreational      
Total gross      
2026/2025 1,672,392   6,169,142
2025/2024 5,849,327   5,362,958
2024/2023 5,110,751   6,046,790
2023/2022 5,645,335   2,122,067
2022/2021 1,985,914   393,319
Prior 9,755,269   10,148,651
Revolving 0   0
Total 30,018,988   30,242,927
Current year-to-date gross write-offs      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   72,030
Prior 25,877   7,841
Revolving 0   0
Total 25,877 0 79,871
Consumer | Marine and recreational | Performing      
Total gross      
2026/2025 1,672,392   6,169,142
2025/2024 5,849,327   5,362,958
2024/2023 5,110,751   6,046,790
2023/2022 5,645,335   2,122,067
2022/2021 1,965,761   393,319
Prior 9,755,269   10,148,651
Revolving 0   0
Total 29,998,835   30,242,927
Consumer | Marine and recreational | Non performing      
Total gross      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 20,153   0
Prior 0   0
Revolving 0   0
Total 20,153   0
Consumer | Other consumer      
Total gross      
2026/2025 87,128   782,570
2025/2024 600,599   708,503
2024/2023 616,390   484,533
2023/2022 394,613   422,512
2022/2021 359,099   103,832
Prior 750,377   705,451
Revolving 0   0
Total 2,808,206   3,207,401
Current year-to-date gross write-offs      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 0   0
Prior 0   0
Revolving 0   0
Total 0 $ 0 0
Consumer | Other consumer | Performing      
Total gross      
2026/2025 87,128   782,570
2025/2024 600,599   708,503
2024/2023 616,390   484,533
2023/2022 394,613   422,512
2022/2021 352,880   103,832
Prior 750,377   698,170
Revolving 0   0
Total 2,801,987   3,200,120
Consumer | Other consumer | Non performing      
Total gross      
2026/2025 0   0
2025/2024 0   0
2024/2023 0   0
2023/2022 0   0
2022/2021 6,219   0
Prior 0   7,281
Revolving 0   0
Total $ 6,219   $ 7,281