Loans Receivable, Net - Schedule of Credit Quality Indicators by Portfolio Segment (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 39,696,485	$ 40,097,948
Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total	38,276,000	39,254,000
Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total	855,000	475,000
Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total	565,000	369,000
Student Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total	3,972,000	5,889,000
Student Loan [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total	3,939,000	5,889,000
Student Loan [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total	33,000
Student Loan [Member] | Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total
Mortgage Loans Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total	29,280,766	33,018,049
Mortgage Loans Portfolio Segment [Member] | Residential 1-4 Family Mortgage Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total	14,132,314	17,894,014
Mortgage Loans Portfolio Segment [Member] | Residential 1-4 Family Mortgage Loans [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total	14,132,000	17,653,000
Mortgage Loans Portfolio Segment [Member] | Residential 1-4 Family Mortgage Loans [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total		241,000
Mortgage Loans Portfolio Segment [Member] | Residential 1-4 Family Mortgage Loans [Member] | Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total
Mortgage Loans Portfolio Segment [Member] | Commercial Real Estate and Multi-Family Mortgage Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total	14,954,000	14,918,000
Mortgage Loans Portfolio Segment [Member] | Commercial Real Estate and Multi-Family Mortgage Loans [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total	13,567,000	14,315,000
Mortgage Loans Portfolio Segment [Member] | Commercial Real Estate and Multi-Family Mortgage Loans [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total	822,000	234,000
Mortgage Loans Portfolio Segment [Member] | Commercial Real Estate and Multi-Family Mortgage Loans [Member] | Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total	565,000	369,000
Mortgage Loans Portfolio Segment [Member] | Home Equity Line of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total	194,000	206,000
Mortgage Loans Portfolio Segment [Member] | Home Equity Line of Credit [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total	194,000	206,000
Mortgage Loans Portfolio Segment [Member] | Home Equity Line of Credit [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total
Mortgage Loans Portfolio Segment [Member] | Home Equity Line of Credit [Member] | Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total
Commercial and Other Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total	6,444,000	1,191,000
Commercial and Other Loans [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total	6,444,000	1,191,000
Commercial and Other Loans [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total
Commercial and Other Loans [Member] | Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total