Loans and Allowance for Credit Losses - By Risk Rating and Year of Origination (Details) - USD ($)	Mar. 31, 2025	Dec. 31, 2024
Loans and Allowance for Credit Losses
2025/2024	$ 7,663,341	$ 32,666,501
2024/2023	34,252,853	22,012,850
2023/2022	20,886,934	39,257,756
2022/2021	38,349,779	14,142,210
2021/2020	14,732,218	33,447,472
Prior	69,441,679	40,281,715
Revolving	5,880,412	5,823,673
Total	191,207,216	187,632,177
Real estate | One to four family residential
Loans and Allowance for Credit Losses
2025/2024	4,623,084	19,412,939
2024/2023	19,717,175	9,559,853
2023/2022	9,253,160	33,402,127
2022/2021	32,625,178	11,738,171
2021/2020	11,503,312	30,020,711
Prior	53,851,973	25,943,643
Revolving	0	0
Total	131,573,882	130,077,444
Real estate | One to four family residential | Performing
Loans and Allowance for Credit Losses
2025/2024	4,623,084	19,412,939
2024/2023	19,717,175	9,559,853
2023/2022	9,253,160	33,402,127
2022/2021	32,625,178	11,738,171
2021/2020	11,503,312	30,020,711
Prior	53,851,973	25,943,643
Revolving	0	0
Total	131,573,882	130,077,444
Real estate | One to four family residential | Non performing
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Real estate | Home equity
Loans and Allowance for Credit Losses
2025/2024	74,473	863,805
2024/2023	888,030	750,208
2023/2022	686,969	438,473
2022/2021	427,888	16,623
2021/2020	16,239	91,757
Prior	159,278	80,460
Revolving	0	0
Total	2,252,877	2,241,326
Real estate | Home equity | Performing
Loans and Allowance for Credit Losses
2025/2024	74,473	863,805
2024/2023	888,030	750,208
2023/2022	686,969	438,473
2022/2021	427,888	16,623
2021/2020	16,239	91,757
Prior	159,278	80,460
Revolving	0	0
Total	2,252,877	2,241,326
Real estate | Home equity | Non performing
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Real estate | Equity line of credit
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
Prior	0	0
Revolving	5,880,412	5,823,673
Total	5,880,412	5,823,673
Real estate | Equity line of credit | Performing
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
Prior	0	0
Revolving	5,880,412	5,823,673
Total	5,880,412	5,823,673
Real estate | Equity line of credit | Non performing
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Real estate | Construction
Loans and Allowance for Credit Losses
2025/2024	698,519	3,754,653
2024/2023	5,587,640	2,721,970
2023/2022	2,585,149	73,963
2022/2021	67,586	0
2021/2020	0	111,209
Prior	198,900	93,581
Revolving	0	0
Total	9,137,794	6,755,376
Real estate | Construction | Performing
Loans and Allowance for Credit Losses
2025/2024	698,519	3,754,653
2024/2023	5,587,640	2,721,970
2023/2022	2,585,149	73,963
2022/2021	67,586	0
2021/2020	0	111,209
Prior	198,900	93,581
Revolving	0	0
Total	9,137,794	6,755,376
Real estate | Construction | Non performing
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Real estate | Multi-family
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	0
2022/2021	207,717	209,884
2021/2020	1,184,787	126,373
Prior	0	935,086
Revolving	0	0
Total	1,392,504	1,271,343
Real estate | Multi-family | Pass
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	0
2022/2021	207,717	209,884
2021/2020	1,184,787	126,373
Prior	0	935,086
Revolving	0	0
Total	1,392,504	1,271,343
Real estate | Multi-family | Special mention
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Real estate | Multi-family | Substandard
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Real estate | Multi-family | Doubtful
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Real estate | Commercial
Loans and Allowance for Credit Losses
2025/2024	0	704,843
2024/2023	486,944	152,169
2023/2022	150,052	1,300,428
2022/2021	1,287,961	248,414
2021/2020	242,538	66,094
Prior	177,392	115,836
Revolving	0	0
Total	2,344,887	2,587,784
Real estate | Commercial | Pass
Loans and Allowance for Credit Losses
2025/2024	0	704,843
2024/2023	486,944	152,169
2023/2022	150,052	1,300,428
2022/2021	1,287,961	248,414
2021/2020	242,538	66,094
Prior	177,392	115,836
Revolving	0	0
Total	2,344,887	2,587,784
Real estate | Commercial | Special mention
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Real estate | Commercial | Substandard
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Real estate | Commercial | Doubtful
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Commercial installment
Loans and Allowance for Credit Losses
2025/2024	422,767	167,507
2024/2023	112,613	258,478
2023/2022	202,399	354,102
2022/2021	339,593	1,069,667
2021/2020	1,008,574	1,479,869
Prior	1,560,203	183,849
Revolving	0	0
Total	3,646,149	3,513,472
Commercial installment | Pass
Loans and Allowance for Credit Losses
2025/2024	422,767	167,507
2024/2023	112,613	258,478
2023/2022	202,399	354,102
2022/2021	339,593	1,069,667
2021/2020	1,008,574	1,479,869
Prior	1,560,203	183,849
Revolving	0	0
Total	3,646,149	3,513,472
Commercial installment | Special mention
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Commercial installment | Substandard
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Commercial installment | Doubtful
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Consumer | Marine and recreational
Loans and Allowance for Credit Losses
2025/2024	1,554,700	6,977,323
2024/2023	6,774,074	8,035,562
2023/2022	7,569,272	3,062,227
2022/2021	2,886,893	650,645
2021/2020	602,917	1,510,484
Prior	11,497,155	10,913,807
Revolving	0	0
Total	30,885,011	31,150,048
Consumer | Marine and recreational | Performing
Loans and Allowance for Credit Losses
2025/2024	1,554,700	6,977,323
2024/2023	6,774,074	8,035,562
2023/2022	7,569,272	3,062,227
2022/2021	2,886,893	650,645
2021/2020	602,917	1,510,484
Prior	11,497,155	10,913,807
Revolving	0	0
Total	30,885,011	31,150,048
Consumer | Marine and recreational | Non performing
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Consumer | Other consumer
Loans and Allowance for Credit Losses
2025/2024	289,798	785,431
2024/2023	686,377	534,610
2023/2022	439,933	626,436
2022/2021	506,963	208,806
2021/2020	173,851	40,975
Prior	1,996,778	2,015,453
Revolving	0	0
Total	4,093,700	4,211,711
Consumer | Other consumer | Performing
Loans and Allowance for Credit Losses
2025/2024	289,798	785,431
2024/2023	686,377	534,610
2023/2022	439,933	613,732
2022/2021	495,713	208,806
2021/2020	173,851	40,975
Prior	1,996,778	2,015,453
Revolving	0	0
Total	4,082,450	4,199,007
Consumer | Other consumer | Non performing
Loans and Allowance for Credit Losses
2025/2024	0	0
2024/2023	0	0
2023/2022	0	12,704
2022/2021	11,250	0
2021/2020	0	0
Prior	0	0
Revolving	0	0
Total	$ 11,250	$ 12,704