Loans Receivable, Net - Schedule of Information About Loan Delinquencies (Details) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 657,000	$ 87,000
Current Loans	42,510,000	43,161,000
Total Loans	43,166,786	43,248,296
90 Days or More Past Due and Accruing	64,000	49,000
Mortgage Loans Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Total Loans	34,973,942	33,907,163
Other Loans [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Current Loans	1,254,000	1,316,000
Total Loans	1,254,000	1,316,000
90 Days or More Past Due and Accruing
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	98,000	5,000
Financing Receivables, 30 to 59 Days Past Due [Member] | Other Loans [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	495,000	33,000
Financing Receivables, 60 to 89 Days Past Due [Member] | Other Loans [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	64,000	49,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Other Loans [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Residential 1-4 Family Mortgage Loans [Member] | Mortgage Loans Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	252,000	49,000
Current Loans	18,190,000	18,190,000
Total Loans	18,441,772	18,239,205
90 Days or More Past Due and Accruing		49,000
Residential 1-4 Family Mortgage Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Mortgage Loans Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Residential 1-4 Family Mortgage Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Mortgage Loans Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	252,000
Residential 1-4 Family Mortgage Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Mortgage Loans Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due		49,000
Commercial Real Estate and Multi-Family Mortgage Loans [Member] | Mortgage Loans Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	234,000
Current Loans	16,288,000	15,640,000
Total Loans	16,522,000	15,640,000
90 Days or More Past Due and Accruing
Commercial Real Estate and Multi-Family Mortgage Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Mortgage Loans Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Commercial Real Estate and Multi-Family Mortgage Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Mortgage Loans Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	234,000
Commercial Real Estate and Multi-Family Mortgage Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Mortgage Loans Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Home Equity Line of Credit [Member] | Mortgage Loans Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	9,000
Current Loans	1,000	28,000
Total Loans	10,000	28,000
90 Days or More Past Due and Accruing	9,000
Home Equity Line of Credit [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Mortgage Loans Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Home Equity Line of Credit [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Mortgage Loans Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due
Home Equity Line of Credit [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Mortgage Loans Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	9,000
Student Loans [Member] | Mortgage Loans Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	162,000	38,000
Current Loans	6,777,000	7,987,000
Total Loans	6,939,000	8,025,000
90 Days or More Past Due and Accruing	55,000
Student Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Mortgage Loans Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	98,000	5,000
Student Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Mortgage Loans Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	9,000	33,000
Student Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Mortgage Loans Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 55,000