FAIR VALUE DISCLOSURES - Summary of Financial Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis (Details) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Fair Value Measurements Using Level 1
Assets
Impaired loans	$ 0	$ 0
OREO	0	0
Fair Value Measurements Using Level 2
Assets
Impaired loans	0	0
OREO	0	0
Fair Value Measurements Using Level 3
Assets
Impaired loans	1,097	1,320
OREO	$ 1,157	$ 1,089