FAIR VALUE - Summary of Assets and Liabilities measured on a Non-Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Assets measured at fair value on non-recurring basis
Other real estate owned	$ 0	$ 175
Carrying Amount
Assets measured at fair value on non-recurring basis
Loans held for sale	12,643
Significant Other Observable Inputs (Level 2)
Assets measured at fair value on non-recurring basis
Loans held for sale	12,643
Non-recurring basis | Carrying Amount
Assets measured at fair value on non-recurring basis
Loans held for sale	12,643
Impaired loans	4,791	2,532
Other real estate owned		175
Non-recurring basis | Quoted Prices In Active Markets for Identical Assets (Level 1)
Assets measured at fair value on non-recurring basis
Impaired loans	0	0
Other real estate owned		0
Non-recurring basis | Significant Other Observable Inputs (Level 2)
Assets measured at fair value on non-recurring basis
Loans held for sale	12,643
Impaired loans	0	0
Other real estate owned		0
Non-recurring basis | Significant Unobservable Inputs (Level 3)
Assets measured at fair value on non-recurring basis
Impaired loans	$ 4,791	2,532
Other real estate owned		$ 175