LOANS AND ALLOWANCE FOR LOAN LOSSES - Additional Information (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)
Loans Receivable Held-for-sale, Amount	$ 667,000		$ 667,000		$ 365,000
Allowance for Credit Losses, Change in Method of Calculating Impairment	0		0		1,000
Impaired Financing Receivable, Interest Income, Accrual Method	119,000	$ 112,000	285,000	$ 218,000
Impaired Financing Receivable Interest Income Non-accrual Method	5,000	0	5,000	0
Foreclosed Assets Held For Resale	895,000		895,000		1,163,000
Foreclosed Assets Held for Resale Represented by Land	39,000		39,000		39,000
Foreclosed Assets Held for Resale Represented by Commercial Real Estate	856,000		856,000		856,000
Foreclosed Assets Held for Resale Represented by Residential Real Estate					268,000
Financing Receivable, Modifications, Recorded Investment	$ 8,917,000		8,917,000		13,777,000
Financing Receivable, Modifications, Unfunded Commitments			$ 0		$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment		890,000		1,053,000
Loans Receivable Non Accrual Status, Minimum Days of past Due			90 days		90 days
Loan Payments, Delinquency Period, Beyond Which Loans are Considered Past Due	10 days		10 days
Loan Payments, Delinquency Period, at which time Delinquency Notice is Automatically Generated	10 or 15 days		10 or 15 days
Loan to a Real Estate Developer Specializing in Commercial Office Space [Member]
Financing Receivable, Modifications, Recorded Investment					$ 4,296,000
Commercial Real Estate
Tax free loans	$ 2,086,000		$ 2,086,000		2,164,000
Financing Receivable Modification Not In Compliance Of Terms			486,000	570,000
Financing Receivable Modification Experienced Payment Defaults	$ 0	47,000	$ 0	47,000
Commercial Real Estate | Maximum [Member]
Term of loan offering	20 years		20 years
Maximum loan to value ratio	80		80
Commercial and Industrial [Member]
Tax free loans	$ 19,468,000		$ 19,468,000		24,161,000
Impaired Financing Receivable, Interest Income, Accrual Method	13,000	5,000	27,000	9,000
Financing Receivable Modification Not In Compliance Of Terms			4,000
Financing Receivable, Modifications, Post-Modification Recorded Investment		751,000		751,000
Residential Portfolio Segment [Member]
Consumer Mortgage Loans Secured by Residential Real Estate in Process of Foreclosure	671,000		671,000		718,000
Impaired Financing Receivable, Interest Income, Accrual Method	$ 4,000	$ 1,000	$ 5,000	$ 2,000
Residential Portfolio Segment [Member] | Home Equity Term Loans [Member] | Maximum [Member]
Term of loan offering	15 years		15 years
Maximum loan to value ratio	80		80
Residential Portfolio Segment [Member] | Line of Credit [Member] | Maximum [Member]
Term of loan offering	20 years		20 years
Maximum loan to value ratio	80		80
Irrevocable Letter of credit [Member] | Loan to a Real Estate Developer Specializing in Commercial Office Space [Member]
Loans and Leases Receivable, Impaired, Commitment to Lend	$ 1,249,000		$ 1,249,000		1,249,000
Unfunded Loan Commitment [Member]
Reserve For Unfunded Lending Commitments	$ 93,000		$ 93,000		$ 117,000
Residential Mortgage [Member] | Originated For Resale [Member] | Maximum [Member]
Term of loan offering	30 years		30 years
Maximum loan to value ratio	80		80
Residential Mortgage [Member] | Held for Investment [Member] | Maximum [Member]
Term of loan offering	20 years		20 years
Maximum loan to value ratio	80		80
Residential Mortgage [Member] | Held for Investment [Member] | With Primary Mortgage Insurance [Member] | Maximum [Member]
Term of loan offering	20 years		20 years
Maximum loan to value ratio	95		95