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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Changes in the ALL by Loan Type (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Allowance for Loan Losses:
Beginning of the period	$ 23,164		$ 17,939
Charge-offs	(57)		(154)
Recoveries	218		341
Provision	(352)		141
Ending of the period	22,973	$ 17,217	22,973	$ 17,217
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Amount of allowance for loan losses arising from loans individually evaluated for impairment		699		699	$ 826
Amount of allowance for loan losses arising from loans collectively evaluated for impairment		16,518		16,518	17,113
Loans Receivable:
Total Loans	1,447,529	1,380,399	1,447,529	1,380,399	1,416,135
Ending balance: individually evaluated for impairment		29,930		29,930	26,919
Ending balance: collectively evaluated for impairment		1,350,469		1,350,469	1,389,216
Originated Loans
Allowance for Loan Losses:
Beginning of the period		16,053		15,830
Charge-offs		(9)		(534)
Recoveries		71		118
Provision		576		1,277
Ending of the period		16,691		16,691
Loans Receivable:
Total Loans		1,226,666		1,226,666	1,272,943
Purchased credit impaired loans
Allowance for Loan Losses:
Ending of the period		0		0
Loans Receivable:
Total Loans		7,271		7,271	7,000
Other acquired loans
Allowance for Loan Losses:
Beginning of the period		772		1,083
Charge-offs		(48)		(83)
Recoveries		3		28
Provision		(201)		(502)
Ending of the period		526		526
Loans Receivable:
Total Loans		146,462		146,462	136,192
Acquired Loans
Allowance for Loan Losses:
Ending of the period		526		526
Commercial/Agricultural Real Estate
Allowance for Loan Losses:
Beginning of the period	18,933		14,085
Charge-offs	0		(46)
Recoveries	206		236
Ending of the period	18,855	13,782	18,855	13,782
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Amount of allowance for loan losses arising from loans individually evaluated for impairment		699		699	519
Amount of allowance for loan losses arising from loans collectively evaluated for impairment		13,083		13,083	13,566
Loans Receivable:
Total Loans		1,098,917		1,098,917	1,125,279
Ending balance: individually evaluated for impairment		18,698		18,698	16,874
Ending balance: collectively evaluated for impairment		1,080,219		1,080,219	1,108,405
Commercial/Agricultural Real Estate | Originated Loans
Allowance for Loan Losses:
Beginning of the period		12,702		12,354
Charge-offs		0		(157)
Recoveries		35		41
Provision		380		879
Ending of the period		13,117		13,117
Loans Receivable:
Total Loans		982,555		982,555	1,017,529
Commercial/Agricultural Real Estate | Purchased credit impaired loans
Allowance for Loan Losses:
Ending of the period		0		0
Loans Receivable:
Total Loans		5,785		5,785	5,748
Commercial/Agricultural Real Estate | Other acquired loans
Allowance for Loan Losses:
Beginning of the period		664		856
Charge-offs		(48)		(48)
Recoveries		0		0
Provision		49		(143)
Ending of the period		665		665
Loans Receivable:
Total Loans		110,577		110,577	102,002
Commercial/Agricultural Real Estate | Acquired Loans
Allowance for Loan Losses:
Ending of the period		665		665
C&I/Agricultural operating
Allowance for Loan Losses:
Beginning of the period	1,458		2,318
Charge-offs	0		0
Recoveries	10		41
Ending of the period	1,189	1,974	1,189	1,974
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Amount of allowance for loan losses arising from loans individually evaluated for impairment		0		0	249
Amount of allowance for loan losses arising from loans collectively evaluated for impairment		1,974		1,974	2,069
Loans Receivable:
Total Loans		160,848		160,848	164,819
Ending balance: individually evaluated for impairment		4,829		4,829	3,292
Ending balance: collectively evaluated for impairment		156,019		156,019	161,527
C&I/Agricultural operating | Originated Loans
Allowance for Loan Losses:
Beginning of the period		1,910		1,959
Charge-offs		0		(310)
Recoveries		8		27
Provision		7		249
Ending of the period		1,925		1,925
Loans Receivable:
Total Loans		145,197		145,197	150,239
C&I/Agricultural operating | Purchased credit impaired loans
Allowance for Loan Losses:
Ending of the period		0		0
Loans Receivable:
Total Loans		578		578	362
C&I/Agricultural operating | Other acquired loans
Allowance for Loan Losses:
Beginning of the period		51		69
Charge-offs		0		0
Recoveries		0		0
Provision		(2)		(20)
Ending of the period		49		49
Loans Receivable:
Total Loans		15,073		15,073	14,218
C&I/Agricultural operating | Acquired Loans
Allowance for Loan Losses:
Ending of the period		49		49
Residential Mortgage
Allowance for Loan Losses:
Beginning of the period	2,452		599
Charge-offs	(54)		(78)
Recoveries	0		40
Ending of the period	2,633	512	2,633	512
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Amount of allowance for loan losses arising from loans individually evaluated for impairment		0		0	48
Amount of allowance for loan losses arising from loans collectively evaluated for impairment		512		512	551
Loans Receivable:
Total Loans		102,090		102,090	108,651
Ending balance: individually evaluated for impairment		6,290		6,290	5,998
Ending balance: collectively evaluated for impairment		95,800		95,800	102,653
Residential Mortgage | Originated Loans
Allowance for Loan Losses:
Beginning of the period		472		518
Charge-offs		0		(35)
Recoveries		1		2
Provision		10		(2)
Ending of the period		483		483
Loans Receivable:
Total Loans		80,664		80,664	88,045
Residential Mortgage | Purchased credit impaired loans
Allowance for Loan Losses:
Ending of the period		0		0
Loans Receivable:
Total Loans		908		908	890
Residential Mortgage | Other acquired loans
Allowance for Loan Losses:
Beginning of the period		48		130
Charge-offs		0		(33)
Recoveries		2		27
Provision		(21)		(95)
Ending of the period		29		29
Loans Receivable:
Total Loans		20,518		20,518	19,716
Residential Mortgage | Acquired Loans
Allowance for Loan Losses:
Ending of the period		29		29
Consumer Installment
Allowance for Loan Losses:
Beginning of the period	321		129
Charge-offs	(3)		(30)
Recoveries	2		24
Ending of the period	296	132	296	132
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Amount of allowance for loan losses arising from loans individually evaluated for impairment		0		0	10
Amount of allowance for loan losses arising from loans collectively evaluated for impairment		132		132	119
Loans Receivable:
Total Loans		18,544		18,544	17,386
Ending balance: individually evaluated for impairment		113		113	755
Ending balance: collectively evaluated for impairment		18,431		18,431	16,631
Consumer Installment | Originated Loans
Allowance for Loan Losses:
Beginning of the period		143		225
Charge-offs		(9)		(32)
Recoveries		27		48
Provision		(38)		(118)
Ending of the period		123		123
Loans Receivable:
Total Loans		18,250		18,250	17,130
Consumer Installment | Purchased credit impaired loans
Allowance for Loan Losses:
Ending of the period		0		0
Loans Receivable:
Total Loans		0		0	0
Consumer Installment | Other acquired loans
Allowance for Loan Losses:
Beginning of the period		9		28
Charge-offs		0		(2)
Recoveries		1		1
Provision		(1)		(18)
Ending of the period		9		9
Loans Receivable:
Total Loans		294		294	256
Consumer Installment | Acquired Loans
Allowance for Loan Losses:
Ending of the period		9		9
Unallocated
Allowance for Loan Losses:
Beginning of the period	0		808
Charge-offs	0		0
Recoveries	0		0
Ending of the period	$ 0	817	$ 0	817
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Amount of allowance for loan losses arising from loans individually evaluated for impairment		0		0	0
Amount of allowance for loan losses arising from loans collectively evaluated for impairment		817		817	808
Loans Receivable:
Total Loans		0		0	0
Ending balance: individually evaluated for impairment		0		0	0
Ending balance: collectively evaluated for impairment		0		0	0
Unallocated | Originated Loans
Allowance for Loan Losses:
Beginning of the period		826		774
Charge-offs		0		0
Recoveries		0		0
Provision		217		269
Ending of the period		1,043		1,043
Loans Receivable:
Total Loans		0		0	0
Unallocated | Purchased credit impaired loans
Allowance for Loan Losses:
Ending of the period		0		0
Loans Receivable:
Total Loans		0		0	0
Unallocated | Other acquired loans
Allowance for Loan Losses:
Beginning of the period		0		0
Charge-offs		0		0
Recoveries		0		0
Provision		(226)		(226)
Ending of the period		(226)		(226)
Loans Receivable:
Total Loans		0		0	$ 0
Unallocated | Acquired Loans
Allowance for Loan Losses:
Ending of the period		$ (226)		$ (226)

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