COMMITMENTS AND CONTINGENCIES - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Commitments and Contingencies [Line Items]
Period of loans commitments	Commitments to make loans are generally made for periods of 90 days or less.
Operating leases, rent expense	$ 25,751	$ 9,629
Home Equity Loan
Commitments and Contingencies [Line Items]
Undisbursed loan funds	46,603,606		$ 41,774,944
Business Line of Credit
Commitments and Contingencies [Line Items]
Undisbursed loan funds	$ 414,598		$ 427,827
Minimum
Commitments and Contingencies [Line Items]
Interest rate	2.99%
Maturity term	10 years
Maximum
Commitments and Contingencies [Line Items]
Interest rate	4.375%
Maturity term	30 years