FAIR VALUE MEASUREMENTS - Additional information (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Impaired Loans Receivable	$ 11,200,000	$ 11,700,000
Impaired Loans Required for Specific Reserves	972,000	291,000
Impaired Loans Specific Reserves	413,000	87,000
Other Impaired Loans Without Specific Reserves	438,000	595,000,000,000
Fair Value, Measurements, Nonrecurring [Member]
Assets, Fair Value Disclosure	$ 9,474,000	$ 9,013,000
Minimum [Member]
Percentage Of Discount From Foreclosed Real Estate	1.00%	5.00%
Percentage Of Discount From Assets held for sale	1.00%
Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member]
Percentage Of Discount From Foreclosed Real Estate	6.00%	6.00%
Maximum [Member]
Percentage Of Discount From Impaired Loans	50.00%	50.00%
Percentage Of Discount From Assets held for sale	25.00%
Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member]
Percentage Of Discount From Foreclosed Real Estate	10.00%	10.00%
Fair Value [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, Fair Value Disclosure	$ 5,900,000	$ 7,300,000