LOANS AND THE ALLOWANCE FOR LOAN LOSSES - Allowance for loan losses by portfolio (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	$ 12,552	$ 10,354	$ 12,539	$ 7,875
(Recovery of) provision for loan losses	406	1,496	418	3,987
Charge-offs		(6)		(30)
Recoveries	6	1	7	13
Ending balance	12,964	11,845	12,964	11,845
Individually evaluated	1,783		1,783		$ 1,621
Collectively evaluated	11,181		11,181		10,918
Loans individually evaluated	4,358		4,358		4,058
Loans collectively evaluated	1,599,025		1,599,025		1,530,127
Total Recorded Investment	1,603,383		1,603,383		1,534,185
Cash, Securities and Other
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	2,039	2,425	2,579	1,058
(Recovery of) provision for loan losses	85	192	(456)	1,571
Charge-offs		(6)		(30)
Recoveries	6	1	7	13
Ending balance	2,130	2,612	2,130	2,612
Individually evaluated	32		32		2
Collectively evaluated	2,098		2,098		2,577
Loans individually evaluated	41		41		50
Loans collectively evaluated	293,796		293,796		356,970
Total Recorded Investment	293,837		293,837		357,020
Construction and Development
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	871	484	932	200
(Recovery of) provision for loan losses	48	249	(13)	533
Ending balance	919	733	919	733
Collectively evaluated	919		919		932
Loans collectively evaluated	132,141		132,141		131,111
Total Recorded Investment	132,141		132,141		131,111
1-4 Family Residential
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	3,399	2,708	3,233	2,850
(Recovery of) provision for loan losses	97	392	263	250
Ending balance	3,496	3,100	3,496	3,100
Collectively evaluated	3,496		3,496		3,233
Loans individually evaluated	83		83
Loans collectively evaluated	502,356		502,356		455,038
Total Recorded Investment	502,439		502,439		455,038
Non-Owner Occupied CRE
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	2,223	1,483	2,004	1,176
(Recovery of) provision for loan losses	271	207	490	514
Ending balance	2,494	1,690	2,494	1,690
Collectively evaluated	2,494		2,494		2,004
Loans collectively evaluated	358,369		358,369		281,943
Total Recorded Investment	358,369		358,369		281,943
Owner Occupied CRE
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	1,225	760	1,159	911
(Recovery of) provision for loan losses	(67)	309	(1)	158
Ending balance	1,158	1,069	1,158	1,069
Collectively evaluated	1,158		1,158		1,159
Loans individually evaluated	1,250		1,250		479
Loans collectively evaluated	166,388		166,388		162,563
Total Recorded Investment	167,638		167,638		163,042
Commercial and Industrial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	2,795	2,494	2,632	1,680
(Recovery of) provision for loan losses	(28)	147	135	961
Ending balance	2,767	$ 2,641	2,767	$ 2,641
Individually evaluated	1,751		1,751		1,619
Collectively evaluated	1,016		1,016		1,013
Loans individually evaluated	2,984		2,984		3,529
Loans collectively evaluated	145,975		145,975		142,502
Total Recorded Investment	$ 148,959		$ 148,959		$ 146,031