LOANS AND ALLOWANCE FOR CREDIT LOSSES (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2023 USD ($) loan	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($) loan
Financing Receivable, Recorded Investment [Line Items]
Total	$ 862,183,000	$ 779,028,000	$ 858,469,000
Financing Receivable, Deferred Income, by Origination Year [Abstract]
2023	122,000
2022	421,000
2021	241,000
2020	158,000
2019	213,000
Prior	4,000
Net deferred loan fees and costs	1,159,000
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss [Abstract]
2023	21,580,000
2022	208,994,000
2021	171,328,000
2020	131,990,000
2019	75,982,000
Prior	252,309,000
Financing Receivable, Gross Charge Offs, by Origination Year [Abstract]
Total Gross Charge Offs	17,000	2,000	206,000
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
2022	4,000
2021	8,000
2019	4,000
Prior	1,000
Total Gross Charge Offs	17,000	2,000	206,000
GGLs
Financing Receivable, Recorded Investment [Line Items]
Total	4,595,000		4,631,000
Pass
Financing Receivable, Recorded Investment [Line Items]
2023	21,458,000
2022	208,556,000
2021	170,265,000
2020	131,832,000
2019	66,412,000
Prior	241,823,000
Total	840,346,000
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Prior	634,000
Total	634,000
Substandard
Financing Receivable, Recorded Investment [Line Items]
2022	17,000
2021	822,000
2019	9,357,000
Prior	9,848,000
Total	20,044,000
Real Estate
Financing Receivable, Recorded Investment [Line Items]
Total	767,060,000		764,880,000
Financing Receivable, Deferred Income, by Origination Year [Abstract]
2023	88,000
2022	271,000
2021	189,000
2020	131,000
2019	(12,000)
Prior	1,000
Net deferred loan fees and costs	668,000
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss [Abstract]
2023	16,536,000
2022	190,575,000
2021	148,569,000
2020	122,267,000
2019	69,481,000
Prior	219,632,000
Real Estate | Pass
Financing Receivable, Recorded Investment [Line Items]
2023	16,448,000
2022	190,287,000
2021	147,558,000
2020	122,136,000
2019	60,136,000
Prior	209,865,000
Total	746,430,000
Real Estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Prior	634,000
Total	634,000
Real Estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
2022	17,000
2021	822,000
2019	9,357,000
Prior	9,132,000
Total	19,328,000
Agricultural
Financing Receivable, Recorded Investment [Line Items]
Total	783,000		860,000
Financing Receivable, Deferred Income, by Origination Year [Abstract]
2022	1,000
Prior	1,000
Net deferred loan fees and costs	2,000
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss [Abstract]
2022	74,000
2021	2,000
Prior	707,000
Agricultural | Pass
Financing Receivable, Recorded Investment [Line Items]
2022	73,000
2021	2,000
Prior	706,000
Total	781,000
Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total	58,280,000		56,077,000
Financing Receivable, Deferred Income, by Origination Year [Abstract]
2023	22,000
2022	116,000
2021	35,000
2020	21,000
2019	221,000
Prior	1,000
Net deferred loan fees and costs	416,000
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss [Abstract]
2023	4,110,000
2022	11,120,000
2021	6,218,000
2020	7,379,000
2019	6,204,000
Prior	$ 23,249,000
Commercial and Industrial | PPP
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Number of loans funded | loan	2
Loan funded under paycheck protection program	$ 101,000
Commercial and Industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
2023	4,088,000
2022	11,004,000
2021	6,183,000
2020	7,358,000
2019	5,983,000
Prior	22,532,000
Total	57,148,000
Commercial and Industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Prior	716,000
Total	716,000
Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total		81,831,000	86,999,000
Financing Receivable, Gross Charge Offs, by Origination Year [Abstract]
Total Gross Charge Offs			158,000
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Total Gross Charge Offs			$ 158,000
Commercial and Industrial | PPP
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Number of loans funded | loan			2
Loan funded under paycheck protection program			$ 113,000
Consumer
Financing Receivable, Recorded Investment [Line Items]
Total	5,844,000		5,707,000
Financing Receivable, Deferred Income, by Origination Year [Abstract]
2023	12,000
2022	31,000
2021	13,000
2020	5,000
2019	4,000
Prior	1,000
Net deferred loan fees and costs	66,000
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss [Abstract]
2023	934,000
2022	1,781,000
2021	1,437,000
2020	366,000
2019	297,000
Prior	1,029,000
Financing Receivable, Gross Charge Offs, by Origination Year [Abstract]
Total Gross Charge Offs	17,000
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
2022	4,000
2021	8,000
2019	4,000
Prior	1,000
Total Gross Charge Offs	17,000
Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
2023	922,000
2022	1,750,000
2021	1,424,000
2020	361,000
2019	293,000
Prior	1,028,000
Total	5,778,000
Consumer
Financing Receivable, Recorded Investment [Line Items]
Total		5,286,000	5,415,000
Financing Receivable, Gross Charge Offs, by Origination Year [Abstract]
Total Gross Charge Offs		2,000	33,000
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Total Gross Charge Offs		2,000	33,000
State and Political Subdivisions
Financing Receivable, Recorded Investment [Line Items]
Total	30,216,000		30,945,000
Financing Receivable, Deferred Income, by Origination Year [Abstract]
2022	2,000
2021	4,000
2020	1,000
Net deferred loan fees and costs	7,000
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss [Abstract]
2022	5,444,000
2021	15,102,000
2020	1,978,000
Prior	7,692,000
State and Political Subdivisions | Pass
Financing Receivable, Recorded Investment [Line Items]
2022	5,442,000
2021	15,098,000
2020	1,977,000
Prior	7,692,000
Total	$ 30,209,000
Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Total		549,921,000	611,549,000
Financing Receivable, Gross Charge Offs, by Origination Year [Abstract]
Total Gross Charge Offs			3,000
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Total Gross Charge Offs			3,000
Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Total		$ 141,990,000	154,506,000
Financing Receivable, Gross Charge Offs, by Origination Year [Abstract]
Total Gross Charge Offs			12,000
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Total Gross Charge Offs			$ 12,000