BUSINESS COMBINATIONS - Loans acquired - General information (Details) - Branches located in western North Carolina $ in Thousands	Apr. 17, 2020 USD ($)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Loans	$ 103,259
Nonperforming Financial Instruments [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Loans	17,000
Performing Financial Instruments [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Loans	$ 86,200