Loan And Allowance for Loan losses - Summary of Credit Exposure Based on Risk Ratings (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	$ 271,387,143	$ 267,543,095
Consumer Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	1,373,761	5,372,529
Commercial And Industrial Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	15,900,097	29,599,982
Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	254,288,288	251,665,061
Pass [Member] | Consumer Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	1,373,761	5,372,529
Pass [Member] | Commercial And Industrial Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	15,900,097	27,643,564
Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	12,760,457	9,041,954
Special Mention [Member] | Consumer Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Special Mention [Member] | Commercial And Industrial Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	466,020
Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	4,338,398	6,836,080
Substandard [Member] | Consumer Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Substandard [Member] | Commercial And Industrial Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		1,490,398
Doubtful [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Doubtful [Member] | Consumer Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Doubtful [Member] | Commercial And Industrial Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Loss [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Loss [Member] | Consumer Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Loss [Member] | Commercial And Industrial Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross		0
Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	254,113,285	232,570,584
Real Estate [Member] | Residential Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	98,433,124	105,837,324
Real Estate [Member] | Home Equity Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	11,510,661	8,892,417
Real Estate [Member] | Multifamily [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	19,937,187	15,140,468
Real Estate [Member] | Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	89,830,611	72,717,869
Real Estate [Member] | Construction And Development [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	34,401,702	29,982,506
Real Estate [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	237,014,430	218,648,968
Real Estate [Member] | Pass [Member] | Residential Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	95,421,741	102,229,498
Real Estate [Member] | Pass [Member] | Home Equity Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	11,510,661	8,891,742
Real Estate [Member] | Pass [Member] | Multifamily [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	19,937,187	14,831,774
Real Estate [Member] | Pass [Member] | Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	78,797,687	67,305,357
Real Estate [Member] | Pass [Member] | Construction And Development [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	31,347,154	25,390,597
Real Estate [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	12,760,457	8,575,934
Real Estate [Member] | Special Mention [Member] | Residential Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	1,764,789	1,243,538
Real Estate [Member] | Special Mention [Member] | Home Equity Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Real Estate [Member] | Special Mention [Member] | Multifamily [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	308,694
Real Estate [Member] | Special Mention [Member] | Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	8,075,262	4,073,313
Real Estate [Member] | Special Mention [Member] | Construction And Development [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	2,920,406	2,950,389
Real Estate [Member] | Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	4,338,398	5,345,682
Real Estate [Member] | Substandard [Member] | Residential Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	1,246,594	2,364,288
Real Estate [Member] | Substandard [Member] | Home Equity Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	675
Real Estate [Member] | Substandard [Member] | Multifamily [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Real Estate [Member] | Substandard [Member] | Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	2,957,662	1,339,199
Real Estate [Member] | Substandard [Member] | Construction And Development [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	134,142	1,641,520
Real Estate [Member] | Doubtful [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Real Estate [Member] | Doubtful [Member] | Residential Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Real Estate [Member] | Doubtful [Member] | Home Equity Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Real Estate [Member] | Doubtful [Member] | Multifamily [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Real Estate [Member] | Doubtful [Member] | Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Real Estate [Member] | Doubtful [Member] | Construction And Development [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Real Estate [Member] | Loss [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Real Estate [Member] | Loss [Member] | Residential Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Real Estate [Member] | Loss [Member] | Home Equity Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Real Estate [Member] | Loss [Member] | Multifamily [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Real Estate [Member] | Loss [Member] | Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	0	0
Real Estate [Member] | Loss [Member] | Construction And Development [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Gross	$ 0	$ 0