LOANS - Allowance for Loan Losses (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
LOANS
Allowance for Loan losses	$ 13,537,000	$ 11,385,000	$ 9,836,000
Allowance for Loan losses, Charge-offs	(4,245,000)	(1,575,000)	(2,465,000)
Allowance for Loan losses, Recoveries	68,000	66,000	101,000
Allowance for Loan losses, Provision (Credit)	7,255,000	3,661,000	3,913,000
Allowance for Loan losses	16,615,000	13,537,000	11,385,000
Real estate loan | Loan Customer Major Write Off [Member]
LOANS
Allowance for Loan losses, Charge-offs	(3,942,000)
Commercial
LOANS
Allowance for Loan losses	8,293,000	6,308,000	4,788,000
Allowance for Loan losses, Charge-offs	(4,092,000)	(1,464,000)	(2,343,000)
Allowance for Loan losses, Recoveries	0	22,000	16,000
Allowance for Loan losses, Provision (Credit)	7,097,000	3,427,000	3,847,000
Allowance for Loan losses	11,298,000	8,293,000	6,308,000
Commercial | Loan Customer Major Write Off [Member]
LOANS
Allowance for Loan losses, Charge-offs			(2,219,000)
Commercial | Real estate loan
LOANS
Allowance for Loan losses	4,405,000	3,051,000	1,921,000
Allowance for Loan losses, Charge-offs	(3,942,000)	0	0
Allowance for Loan losses, Recoveries	0	2,000	0
Allowance for Loan losses, Provision (Credit)	6,611,000	1,352,000	1,130,000
Allowance for Loan losses	7,074,000	4,405,000	3,051,000
Commercial | Commercial and industrial
LOANS
Allowance for Loan losses	2,723,000	2,245,000	1,391,000
Allowance for Loan losses, Charge-offs	(150,000)	(1,464,000)	(2,236,000)
Allowance for Loan losses, Recoveries	0	20,000	16,000
Allowance for Loan losses, Provision (Credit)	336,000	1,922,000	3,074,000
Allowance for Loan losses	2,909,000	2,723,000	2,245,000
Commercial | Commercial Construction And Land
LOANS
Allowance for Loan losses	637,000	454,000	966,000
Allowance for Loan losses, Charge-offs	0	0	(107,000)
Allowance for Loan losses, Recoveries	0	0	0
Allowance for Loan losses, Provision (Credit)	10,000	183,000	(405,000)
Allowance for Loan losses	647,000	637,000	454,000
Commercial | Loans secured by farm land
LOANS
Allowance for Loan losses	115,000	120,000	158,000
Allowance for Loan losses, Charge-offs	0	0	0
Allowance for Loan losses, Recoveries	0	0	0
Allowance for Loan losses, Provision (Credit)	(3,000)	(5,000)	(38,000)
Allowance for Loan losses	112,000	115,000	120,000
Commercial | Multi-family (5 or more) residential
LOANS
Allowance for Loan losses	215,000	236,000	156,000
Allowance for Loan losses, Charge-offs	0	0	0
Allowance for Loan losses, Recoveries	0	0	0
Allowance for Loan losses, Provision (Credit)	196,000	(21,000)	80,000
Allowance for Loan losses	411,000	215,000	236,000
Commercial | Agricultural loans
LOANS
Allowance for Loan losses	25,000	34,000	41,000
Allowance for Loan losses, Charge-offs	0	0	0
Allowance for Loan losses, Recoveries	0	0	0
Allowance for Loan losses, Provision (Credit)	(4,000)	(9,000)	(7,000)
Allowance for Loan losses	21,000	25,000	34,000
Commercial | Other commercial loans
LOANS
Allowance for Loan losses	173,000	168,000	155,000
Allowance for Loan losses, Charge-offs	0	0	0
Allowance for Loan losses, Recoveries	0	0	0
Allowance for Loan losses, Provision (Credit)	(49,000)	5,000	13,000
Allowance for Loan losses	124,000	173,000	168,000
Residential mortgage
LOANS
Allowance for Loan losses	4,338,000	4,253,000	4,182,000
Allowance for Loan losses, Charge-offs	0	(11,000)	0
Allowance for Loan losses, Recoveries	19,000	6,000	44,000
Allowance for Loan losses, Provision (Credit)	(284,000)	90,000	27,000
Allowance for Loan losses	4,073,000	4,338,000	4,253,000
Residential mortgage | Real estate loan | first liens
LOANS
Allowance for Loan losses	3,650,000	3,524,000	3,405,000
Allowance for Loan losses, Charge-offs	0	(11,000)	0
Allowance for Loan losses, Recoveries	4,000	4,000	39,000
Allowance for Loan losses, Provision (Credit)	(241,000)	133,000	80,000
Allowance for Loan losses	3,413,000	3,650,000	3,524,000
Residential mortgage | Real estate loan | junior liens
LOANS
Allowance for Loan losses	184,000	349,000	384,000
Allowance for Loan losses, Charge-offs	0	0	0
Allowance for Loan losses, Recoveries	0	0	1,000
Allowance for Loan losses, Provision (Credit)	(17,000)	(165,000)	(36,000)
Allowance for Loan losses	167,000	184,000	349,000
Residential mortgage | Construction Loans
LOANS
Allowance for Loan losses	202,000	99,000
Allowance for Loan losses, Charge-offs		0
Allowance for Loan losses, Recoveries		0
Allowance for Loan losses, Provision (Credit)		103,000
Allowance for Loan losses		202,000	99,000
Residential mortgage | Home equity lines of credit
LOANS
Allowance for Loan losses	302,000	281,000	276,000
Allowance for Loan losses, Charge-offs	0	0	0
Allowance for Loan losses, Recoveries	15,000	2,000	4,000
Allowance for Loan losses, Provision (Credit)	(35,000)	19,000	1,000
Allowance for Loan losses	282,000	302,000	281,000
Residential mortgage | 1-4 Family residential construction
LOANS
Allowance for Loan losses	202,000	99,000	117,000
Allowance for Loan losses, Charge-offs	0		0
Allowance for Loan losses, Recoveries	0		0
Allowance for Loan losses, Provision (Credit)	9,000		(18,000)
Allowance for Loan losses	211,000	202,000	99,000
Consumer
LOANS
Allowance for Loan losses	235,000	239,000	281,000
Allowance for Loan losses, Charge-offs	(153,000)	(100,000)	(122,000)
Allowance for Loan losses, Recoveries	49,000	38,000	41,000
Allowance for Loan losses, Provision (Credit)	113,000	58,000	39,000
Allowance for Loan losses	244,000	235,000	239,000
Unallocated
LOANS
Allowance for Loan losses	671,000	585,000	585,000
Allowance for Loan losses, Charge-offs	0	0	0
Allowance for Loan losses, Recoveries	0	0	0
Allowance for Loan losses, Provision (Credit)	329,000	86,000	0
Allowance for Loan losses	$ 1,000,000	$ 671,000	$ 585,000