LOANS AND THE ALLOWANCE FOR LOAN LOSSES - Allowance for loan losses by portfolio (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	$ 12,539	$ 8,242	$ 12,539	$ 7,875
(Recovery of) provision for loan losses	12	2,124	12	2,491
Charge-offs		(24)		(24)
Recoveries	1	12	1	12
Ending balance	12,552	10,354	12,552	10,354
Individually evaluated	1,754		1,754		$ 1,621
Collectively evaluated	10,798		10,798		10,918
Loans individually evaluated	3,120		3,120		4,058
Loans collectively evaluated	1,569,895		1,569,895		1,530,127
Total Recorded Investment	1,573,015		1,573,015		1,534,185
Cash, Securities and Other
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	2,573	1,092	2,579	1,058
(Recovery of) provision for loan losses	(535)	1,345	(541)	1,379
Charge-offs		(24)		(24)
Recoveries	1	12	1	12
Ending balance	2,039	2,425	2,039	2,425
Individually evaluated	3		3		2
Collectively evaluated	2,036		2,036		2,577
Loans individually evaluated	15		15		50
Loans collectively evaluated	290,892		290,892		356,970
Total Recorded Investment	290,907		290,907		357,020
Construction and Development
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	766	186	932	200
(Recovery of) provision for loan losses	105	298	(61)	284
Ending balance	871	484	871	484
Collectively evaluated	871		871		932
Loans collectively evaluated	127,141		127,141		131,111
Total Recorded Investment	127,141		127,141		131,111
1-4 Family Residential
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	3,152	3,008	3,233	2,850
(Recovery of) provision for loan losses	247	(300)	166	(142)
Ending balance	3,399	2,708	3,399	2,708
Collectively evaluated	3,399		3,399		3,233
Loans collectively evaluated	496,101		496,101		455,038
Total Recorded Investment	496,101		496,101		455,038
Non-Owner Occupied CRE
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	2,211	1,403	2,004	1,176
(Recovery of) provision for loan losses	12	80	219	307
Ending balance	2,223	1,483	2,223	1,483
Collectively evaluated	2,223		2,223		2,004
Loans collectively evaluated	324,493		324,493		281,943
Total Recorded Investment	324,493		324,493		281,943
Owner Occupied CRE
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	1,123	884	1,159	911
(Recovery of) provision for loan losses	102	(124)	66	(151)
Ending balance	1,225	760	1,225	760
Collectively evaluated	1,225		1,225		1,159
Loans individually evaluated					479
Loans collectively evaluated	178,847		178,847		162,563
Total Recorded Investment	178,847		178,847		163,042
Commercial and Industrial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	2,714	1,669	2,632	1,680
(Recovery of) provision for loan losses	81	825	163	814
Ending balance	2,795	$ 2,494	2,795	$ 2,494
Individually evaluated	1,751		1,751		1,619
Collectively evaluated	1,044		1,044		1,013
Loans individually evaluated	3,105		3,105		3,529
Loans collectively evaluated	152,421		152,421		142,502
Total Recorded Investment	$ 155,526		$ 155,526		$ 146,031