LOANS AND ALLOWANCE FOR LOAN LOSSES - Additional Information (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2022 USD ($) loan	Mar. 31, 2021 USD ($) loan	Dec. 31, 2021 USD ($) loan
Loans Receivable Held-for-sale, Amount	$ 4,706,000		$ 6,006,000
Interest rate	1.00%
Maximum loan to value ratio with PMI	95.00%
Loan Payments, Delinquency Period, Beyond Which Loans are Considered Past Due	10 days
Loan Payments, Delinquency Period, at which time Delinquency Notice is Automatically Generated	10 or 15 days
Loan Payments, Delinquency Period, Beyond Which Loans are Considered Non-Accrual	90 days
Foreclosed Assets Held For Resale	$ 0		0
Consumer Mortgage Loans Secured by Residential Real Estate in Process of Foreclosure	41,000		41,000
Financing Receivable, Modifications, Recorded Investment	7,736,000		8,020,000
Financing Receivable, Modifications, Unfunded Commitments	$ 0		0
Modified value of TDR		$ 301,000
Number of contracts | loan	0	3
Impaired Financing Receivable Related Allowance Attributable to TDR	$ 0		0
Impaired Financing Receivable, Interest Income, Accrual Method	74,000	$ 96,000
Impaired Financing Receivable Interest Income Non-accrual Method	0	0
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 301,000
Government Guaranteed Loans
Loans	$ 5,326,000		3,829,000
Minimum
Term of loan	2 years
Maximum
Term of loan	5 years
Commercial Real Estate [Member] | Maximum
Term of loan offering	20 years
Maximum loan to value ratio	80.00%
Irrevocable Letter of credit [Member] | Developer of a Residential Sub-Division [Member]
Loans and Leases Receivable, Impaired, Commitment to Lend	$ 1,249,000		1,249,000
Unfunded Loan Commitment [Member]
Reserve For Unfunded Lending Commitments	$ 121,000		$ 177,000
Loan Restructuring Modification [Member]
Count | loan	0		1
Investment			$ 9,423,000
Term Modification
Number of contracts | loan		2
Payment Modification
Number of contracts | loan		1
Commercial and Industrial [Member]
Tax free loans	$ 24,793,000		24,647,000
Financing Receivable Modification Not In Compliance Of Terms	$ 696,000	$ 737,000
Number of loans not in compliance with restructure | loan	3	3
Impaired Financing Receivable, Interest Income, Accrual Method	$ 2,000	$ 2,000
Government Guaranteed Loans.	$ 5,326,000		$ 3,829,000
Commercial and Industrial [Member] | First Round of Paycheck Protection Program Loans Issuance
Number of loans funded | loan	2
Loan funded under paycheck protection program	$ 148,000
Commercial and Industrial [Member] | Second Round of Paycheck Protection Program Loans Issuance
Number of loans funded | loan	49
Loan funded under paycheck protection program	$ 1,096,000
Commercial and Industrial [Member] | Paycheck Protection Program Loans
Number of loans funded | loan	51		122
Loan funded under paycheck protection program	$ 1,244,000		$ 4,894,000
Commercial and Industrial [Member] | Paycheck Protection Program Loans | First Round of Paycheck Protection Program Loans Issuance
Number of loans funded | loan			2
Loan funded under paycheck protection program			$ 160,000
Commercial and Industrial [Member] | Paycheck Protection Program Loans | Second Round of Paycheck Protection Program Loans Issuance
Number of loans funded | loan			120
Loan funded under paycheck protection program			$ 4,734,000
Commercial Real Estate
Tax free loans	1,627,000		$ 1,671,000
Modified value of TDR		$ 301,000
Number of contracts | loan		3
Financing Receivable Modification Not In Compliance Of Terms	$ 431,000	$ 299,000
Number of loans not in compliance with restructure	6	6
Number of loans modified as TDRs during the past twelve months | loan	1	1
Financing Receivable Modification Experienced Payment Defaults		$ 92,000
Impaired Financing Receivable, Interest Income, Accrual Method	$ 72,000	93,000
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 301,000
Commercial Real Estate | Term Modification
Number of contracts | loan		2
Commercial Real Estate | Payment Modification
Number of contracts | loan		1
Residential Real Estate
Financing Receivable Modification Not In Compliance Of Terms	$ 13,000	$ 17,000
Number of loans not in compliance with restructure | loan	1	1
Impaired Financing Receivable, Interest Income, Accrual Method	$ 0	$ 1,000
Residential Real Estate | Maximum
Term of loan offering	20 years
Residential Real Estate | Home Equity Term Loans [Member] | Maximum
Term of loan offering	15 years
Residential Real Estate | Residential Mortgage [Member] | Originated For Resale [Member]
Loans held for sale term	30 years
Residential Real Estate | Residential Mortgage [Member] | Originated For Resale [Member] | Maximum
Term of loan offering	30 years
Maximum loan to value ratio	80.00%
Residential Real Estate | Home Equity Loan [Member] | Maximum
Maximum loan to value ratio	80.00%
Residential Real Estate | Home Equity Line of Credit [Member] | Maximum
Maximum loan to value ratio	80.00%
Residential Real Estate | Home Equity Line of Credit [Member] | Home Equity Term Loans [Member] | Maximum
Term of loan offering	20 years