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LOANS - Allowance for Loan Losses (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
LOANS
Allowance for Loan losses	$ 13,537,000	$ 11,385,000
Allowance for Loan losses, Charge-offs	(180,000)	(11,000)
Allowance for Loan losses, Recoveries	23,000	28,000
Allowance for Loan losses, Provision (Credit)	891,000	259,000
Allowance for Loan losses	14,271,000	11,661,000
Commercial
LOANS
Allowance for Loan losses	8,293,000	6,308,000
Allowance for Loan losses, Charge-offs	(150,000)	0
Allowance for Loan losses, Recoveries	0	14,000
Allowance for Loan losses, Provision (Credit)	779,000	242,000
Allowance for Loan losses	8,922,000	6,564,000
Commercial | Real estate loan
LOANS
Allowance for Loan losses	4,405,000	3,051,000
Allowance for Loan losses, Charge-offs	0	0
Allowance for Loan losses, Recoveries	0	0
Allowance for Loan losses, Provision (Credit)	612,000	299,000
Allowance for Loan losses	5,017,000	3,350,000
Commercial | Commercial and industrial
LOANS
Allowance for Loan losses	2,723,000	2,245,000
Allowance for Loan losses, Charge-offs	(150,000)	0
Allowance for Loan losses, Recoveries	0	14,000
Allowance for Loan losses, Provision (Credit)	268,000	(72,000)
Allowance for Loan losses	2,841,000	2,187,000
Commercial | Commercial Construction And Land
LOANS
Allowance for Loan losses	637,000	454,000
Allowance for Loan losses, Charge-offs	0	0
Allowance for Loan losses, Recoveries	0	0
Allowance for Loan losses, Provision (Credit)	(246,000)	22,000
Allowance for Loan losses	391,000	476,000
Commercial | Loans secured by farm land
LOANS
Allowance for Loan losses	115,000	120,000
Allowance for Loan losses, Charge-offs	0	0
Allowance for Loan losses, Recoveries	0	0
Allowance for Loan losses, Provision (Credit)	14,000	(9,000)
Allowance for Loan losses	129,000	111,000
Commercial | Multi-family (5 or more) residential
LOANS
Allowance for Loan losses	215,000	236,000
Allowance for Loan losses, Charge-offs	0	0
Allowance for Loan losses, Recoveries	0	0
Allowance for Loan losses, Provision (Credit)	152,000	19,000
Allowance for Loan losses	367,000	255,000
Commercial | Agricultural loans
LOANS
Allowance for Loan losses	25,000	34,000
Allowance for Loan losses, Charge-offs	0	0
Allowance for Loan losses, Recoveries	0	0
Allowance for Loan losses, Provision (Credit)	2,000	(8,000)
Allowance for Loan losses	27,000	26,000
Commercial | Other commercial loans
LOANS
Allowance for Loan losses	173,000	168,000
Allowance for Loan losses, Charge-offs	0	0
Allowance for Loan losses, Recoveries	0	0
Allowance for Loan losses, Provision (Credit)	(23,000)	(9,000)
Allowance for Loan losses	150,000	159,000
Residential mortgage
LOANS
Allowance for Loan losses	4,338,000	4,253,000
Allowance for Loan losses, Charge-offs	0	0
Allowance for Loan losses, Recoveries	16,000	2,000
Allowance for Loan losses, Provision (Credit)	91,000	(55,000)
Allowance for Loan losses	4,445,000	4,200,000
Residential mortgage | Real estate loan | first liens
LOANS
Allowance for Loan losses	3,650,000	3,524,000
Allowance for Loan losses, Charge-offs	0	0
Allowance for Loan losses, Recoveries	1,000	1,000
Allowance for Loan losses, Provision (Credit)	159,000	(18,000)
Allowance for Loan losses	3,810,000	3,507,000
Residential mortgage | Real estate loan | junior liens
LOANS
Allowance for Loan losses	184,000	349,000
Allowance for Loan losses, Charge-offs	0	0
Allowance for Loan losses, Recoveries	0	0
Allowance for Loan losses, Provision (Credit)	(3,000)	(15,000)
Allowance for Loan losses	181,000	334,000
Residential mortgage | Home equity lines of credit
LOANS
Allowance for Loan losses	302,000	281,000
Allowance for Loan losses, Charge-offs	0	0
Allowance for Loan losses, Recoveries	15,000	1,000
Allowance for Loan losses, Provision (Credit)	(11,000)	(1,000)
Allowance for Loan losses	306,000	281,000
Residential mortgage | 1-4 Family residential construction
LOANS
Allowance for Loan losses	202,000	99,000
Allowance for Loan losses, Charge-offs	0	0
Allowance for Loan losses, Recoveries	0	0
Allowance for Loan losses, Provision (Credit)	(54,000)	(21,000)
Allowance for Loan losses	148,000	78,000
Consumer
LOANS
Allowance for Loan losses	235,000	239,000
Allowance for Loan losses, Charge-offs	(30,000)	(11,000)
Allowance for Loan losses, Recoveries	7,000	12,000
Allowance for Loan losses, Provision (Credit)	25,000	(20,000)
Allowance for Loan losses	237,000	220,000
Unallocated
LOANS
Allowance for Loan losses	671,000	585,000
Allowance for Loan losses, Charge-offs	0	0
Allowance for Loan losses, Recoveries	0	0
Allowance for Loan losses, Provision (Credit)	(4,000)	92,000
Allowance for Loan losses	$ 667,000	$ 677,000

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