FINANCIAL INSTRUMENTS WITH OFF-BALANCE SHEET RISK - Narrative (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Reserve in other liabilities	$ 1,000	$ 998
MPF Program
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total outstanding balance of loans sold under the MPF Program	26,000	30,100
Limited recourse back on loans	$ 777	$ 1,200