COMMITMENTS AND CONTINGENCIES - Significant Off-balance Sheet Commitments (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total	$ 155,756
Commitments to originate loans: | Adjustable-rate
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total	14,318
Commitments to originate loans: | Fixed-rate
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total	12,903
Standby letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total	2,070
Undisbursed loan funds and unused lines of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total	$ 126,465