Loans and Allowance for Loan Losses - Categories (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 181,551,161	$ 173,852,016
Net deferred loan costs	(482,681)	(491,331)
Undisbursed portion of loans	1,294,271	2,573,244
Allowance for loan losses	1,407,545	1,405,072
Net loans	179,332,026	170,365,031
One- to Four- Family Mortgage Loans Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	91,919,064	93,659,520
One To Four Family Investment Mortgage Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	12,846,342	14,242,563
Multi-Family Mortgage Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	36,628,238	27,140,014
Nonresidential Mortgage Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	23,377,598	18,930,426
Construction & Land Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	5,329,188	7,293,737
Real Estate Secured Lines of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	10,029,917	11,373,975
Commercial Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	557,268	415,730
Other Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 863,546	$ 796,051