Fair Value Measurements and Disclosures - Schedule of Estimated Fair Values of Financial Instruments (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Securities held to maturity	$ 442,000	$ 441,000
Securities available for sale	50,027,457	37,978,622
Carrying Value [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Cash and cash equivalents	2,147,000	1,820,000
Certificates of Deposit	500,000	999,000
Securities held to maturity	421,000	424,000
Securities available for sale	50,027,000	37,979,000
Loans receivable	39,266,000	39,840,000
FHLB and other stock, at cost	226,000	236,000
Accrued interest receivable	526,000	503,000
Deposits	78,251,000	71,899,000
Borrowings	6,501,000	1,750,000
Estimate of Fair Value Disclosure [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Cash and cash equivalents	2,147,000	1,820,000
Certificates of Deposit	500,000	997,000
Securities held to maturity	442,000	441,000
Securities available for sale	50,027,000	37,979,000
Loans receivable	39,396,000	39,382,000
FHLB and other stock, at cost	226,000	236,000
Accrued interest receivable	526,000	503,000
Deposits	78,461,000	72,224,000
Borrowings	$ 6,543,000	$ 1,761,000