GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill [Roll Forward]
Beginning of year	$ 21,824	$ 21,824
Acquired goodwill	0	0
End of year	21,824	21,824	$ 21,824
Balance Acquired	11,608	11,608
Accumulated Amortization	11,350	10,866
Aggregate amortization expense	484	609	$ 734
Remaining estimated aggregate amortization expense [Abstract]
2021	258
Total	258
Core deposit intangibles
Goodwill [Roll Forward]
Balance Acquired	5,975	5,975
Accumulated Amortization	5,962	5,832
Other customer relationship intangibles
Goodwill [Roll Forward]
Balance Acquired	5,633	5,633
Accumulated Amortization	$ 5,388	$ 5,034