FINANCIAL INSTRUMENTS WITH OFF-BALANCE SHEET RISK (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Financial Instruments with Off-Balance Sheet Risk [Abstract]
Off-balance sheet credit risks	$ 213,897,000	$ 191,880,000
Undisbursed Loan Commitments [Member]
Financial Instruments with Off-Balance Sheet Risk [Abstract]
Off-balance sheet credit risks	207,589,000	189,097,000
Standby Letters of Credit [Member]
Financial Instruments with Off-Balance Sheet Risk [Abstract]
Off-balance sheet credit risks	2,878,000	1,731,000
Financial Standby Letter of Credit [Member]
Financial Instruments with Off-Balance Sheet Risk [Abstract]
Off-balance sheet credit risks	0	0
Draw on outstanding letters of credit	0	0
Performance Standby Letters of Credit [Member]
Financial Instruments with Off-Balance Sheet Risk [Abstract]
Off-balance sheet credit risks	2,878,000	1,731,000
Draw on outstanding letters of credit	0	0
Commitments to Sell Loans [Member]
Financial Instruments with Off-Balance Sheet Risk [Abstract]
Off-balance sheet credit risks	3,430,000	1,052,000
Reserve for Off-balance Sheet Activity [Member]
Financial Instruments with Off-Balance Sheet Risk [Abstract]
Reserve for unfunded commitments	750,000	950,000
Derivative [Member]
Financial Instruments with Off-Balance Sheet Risk [Abstract]
Off-balance sheet credit risks	$ 0	$ 0