INCOME TAXES - LOW INCOME HOUSING TAX CREDITS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Investment
Low income housing tax credit investments - Gross	$ 11,912	$ 3,971
Life-to-date amortization	(1,218)	(347)
Low income housing tax credit investments - Net	10,694	3,624
Unfunded Commitment
Low income housing tax credit investments - Gross	24,888	14,029
Low income housing tax credit investments - Net	$ 24,888	$ 14,029