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LOANS AND ALLOWANCE FOR CREDIT LOSSES, Loan Portfolio by Loan Class (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Loan Portfolio by Loan Class [Abstract]
Loans	$ 1,053,144		$ 984,100
Allowance for credit losses	(16,149)	$ (15,579)	(14,792)	$ (14,771)	$ (13,952)
Deferred origination fees and costs, net	71		830
Loans, net	1,037,066		970,138
Commercial [Member]
Loan Portfolio by Loan Class [Abstract]
Loans	93,753		106,771
Allowance for credit losses	(1,736)	(1,775)	(1,463)	(1,490)	(1,604)
Commercial Real Estate [Member]
Loan Portfolio by Loan Class [Abstract]
Loans	718,847		645,166
Allowance for credit losses	(10,576)	(10,050)	(10,073)	(10,137)	(8,808)
Agriculture [Member]
Loan Portfolio by Loan Class [Abstract]
Loans	109,942		114,040
Allowance for credit losses	(1,019)	(939)	(1,757)	(1,822)	(1,482)
Residential Mortgage [Member]
Loan Portfolio by Loan Class [Abstract]
Loans	101,755		92,669
Allowance for credit losses	(1,903)	(1,824)	(880)	(847)	(742)
Residential Construction [Member]
Loan Portfolio by Loan Class [Abstract]
Loans	14,021		10,167
Allowance for credit losses	(332)	(487)	(178)	(130)	(74)
Consumer [Member]
Loan Portfolio by Loan Class [Abstract]
Loans	14,826		15,287
Allowance for credit losses	$ (362)	$ (367)	$ (173)	$ (176)	$ (167)