DEPOSITS - Schedule of Maturities of Certificates of Deposit (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Time Deposits [Line Items]
Less than 3 months remaining	$ 168,456	$ 285,236
3 to 6 months remaining	118,019	187,854
6 to 12 months remaining	188,396	154,837
Total due within 1 year	474,871	627,927
1 to 2 years remaining	25,520	24,094
2 to 3 years remaining	6,531	2,402
3 to 4 years remaining	0	25
4 to 5 years remaining	1,185	0
More than 5 years remaining	9	485
Total	$ 508,116	$ 654,933