LOANS AND ALLOWANCE FOR LOAN LOSSES - Activity in allowance for loan losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Beginning balance	$ 8,937	$ 8,047	$ 8,680	$ 7,933	$ 7,933
Charge-offs	(13)	(94)	(15)	(117)	(158)
Recoveries	18	36	58	38	45
Provision (credit)	218	135	437	270	860
Ending Balance	9,160	8,124	9,160	8,124	8,680
Ending balance: individually evaluated for impairment		1		1	0
Ending balance: collectively evaluated for impairment	9,160	8,123	9,160	8,123	8,680
Ending Balance	804,820	741,905	804,820	741,905	752,841
Ending balance: individually evaluated for impairment	12,284	16,093	12,284	16,093	13,673
Ending balance: collectively evaluated for impairment	792,536	725,812	792,536	725,812	739,168
Commercial and Industrial [Member]
Beginning balance	665	790	681	787	787
Charge-offs	(9)		(9)	(13)	(13)
Recoveries	1		2		0
Provision (credit)	18	61	1	77	(93)
Ending Balance	675	851	675	851	681
Ending balance: individually evaluated for impairment					0
Ending balance: collectively evaluated for impairment	675	851	675	851	681
Ending Balance	82,539	103,894	82,539	103,894	82,526
Ending balance: individually evaluated for impairment	991	1,047	991	1,047	1,017
Ending balance: collectively evaluated for impairment	81,548	102,847	81,548	102,847	81,509
Commercial Real Estate
Beginning balance	5,759	4,786	5,408	4,762	4,762
Charge-offs		(29)		(29)	(29)
Recoveries		30	38	30	30
Provision (credit)	195	143	508	167	645
Ending Balance	5,954	4,930	5,954	4,930	5,408
Ending balance: individually evaluated for impairment		1		1	0
Ending balance: collectively evaluated for impairment	5,954	4,929	5,954	4,929	5,408
Ending Balance	568,258	486,825	568,258	486,825	521,654
Ending balance: individually evaluated for impairment	10,448	13,861	10,448	13,861	11,803
Ending balance: collectively evaluated for impairment	557,810	472,964	557,810	472,964	509,851
Residential Real Estate
Beginning balance	1,538	1,606	1,539	1,643	1,643
Charge-offs		(55)		(55)	(80)
Recoveries	13	1	14	1	4
Provision (credit)	58	(13)	56	(50)	(28)
Ending Balance	1,609	1,539	1,609	1,539	1,539
Ending balance: individually evaluated for impairment					0
Ending balance: collectively evaluated for impairment	1,609	1,539	1,609	1,539	1,539
Ending Balance	148,621	145,965	148,621	145,965	143,383
Ending balance: individually evaluated for impairment	845	1,185	845	1,185	853
Ending balance: collectively evaluated for impairment	147,776	144,780	147,776	144,780	142,530
Consumer [Member]
Beginning balance	78	93	84	94	94
Charge-offs	(4)	(10)	(6)	(20)	(36)
Recoveries	4	5	4	7	11
Provision (credit)	1	7	(3)	14	15
Ending Balance	79	95	79	95	84
Ending balance: individually evaluated for impairment					0
Ending balance: collectively evaluated for impairment	79	95	79	95	84
Ending Balance	5,402	5,221	5,402	5,221	5,278
Ending balance: individually evaluated for impairment					0
Ending balance: collectively evaluated for impairment	5,402	5,221	5,402	5,221	5,278
Unallocated Financing Receivables [Member]
Beginning balance	897	772	968	647	647
Charge-offs					0
Recoveries					0
Provision (credit)	(54)	(63)	(125)	62	321
Ending Balance	843	709	843	709	968
Ending balance: individually evaluated for impairment					0
Ending balance: collectively evaluated for impairment	$ 843	$ 709	$ 843	$ 709	968
Ending Balance					0
Ending balance: individually evaluated for impairment					0
Ending balance: collectively evaluated for impairment					$ 0