LOANS AND ALLOWANCE FOR CREDIT LOSSES - Recorded Investment of Residential and Consumer Loans (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Residential Real Estate [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
2026/2025	$ 38,609		$ 38,609		$ 70,687
2025/2024	73,640		73,640		63,920
2024/2023	60,731		60,731		51,809
2023/2022	47,210		47,210		35,247
2022/2021	32,675		32,675		41,829
Prior	152,149		152,149		120,426
Revolving Loans Amortized Cost Basis	31,919		31,919		34,002
Total ending loans balance	436,933		436,933		417,920
2026/2025			0		0
2025/2024			0		100
2024/2023			58		0
2023/2022			0		15
2022/2021			0		23
Prior			24		15
Revolving Loans Amortized Cost Basis			0		0
Current Period gross charge-offs	10	$ 11	82	$ 16	153
Residential Real Estate [Member] \| Performing [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
2026/2025	38,609		38,609		70,687
2025/2024	73,640		73,640		63,505
2024/2023	60,692		60,692		51,608
2023/2022	47,098		47,098		34,817
2022/2021	32,349		32,349		41,803
Prior	150,496		150,496		119,416
Revolving Loans Amortized Cost Basis	31,919		31,919		34,002
Total ending loans balance	434,803		434,803		415,838
Residential Real Estate [Member] \| Nonperforming [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
2026/2025	0		0		0
2025/2024	0		0		415
2024/2023	39		39		201
2023/2022	112		112		430
2022/2021	326		326		26
Prior	1,653		1,653		1,010
Revolving Loans Amortized Cost Basis	0		0		0
Total ending loans balance	2,130		2,130		2,082
Consumer [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
Current Period gross charge-offs	455	$ 611	984	$ 1,137
Consumer [Member] \| Automobile [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
2026/2025	5,638		5,638		10,445
2025/2024	7,949		7,949		7,877
2024/2023	5,666		5,666		9,953
2023/2022	7,069		7,069		6,937
2022/2021	4,402		4,402		1,672
Prior	1,141		1,141		393
Revolving Loans Amortized Cost Basis	0		0		0
Total ending loans balance	31,865		31,865		37,277
2026/2025			0		34
2025/2024			64		251
2024/2023			98		338
2023/2022			61		118
2022/2021			37		12
Prior			2		16
Revolving Loans Amortized Cost Basis			0		0
Current Period gross charge-offs			262		769
Consumer [Member] \| Home Equity [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
2026/2025	86		86		0
2025/2024	91		91		4
2024/2023	100		100		19
2023/2022	106		106		0
2022/2021	0		0		100
Prior	0		0		140
Revolving Loans Amortized Cost Basis	54,423		54,423		50,342
Total ending loans balance	54,806		54,806		50,605
2026/2025			0		0
2025/2024			0		0
2024/2023			0		0
2023/2022			0		0
2022/2021			0		0
Prior			0		0
Revolving Loans Amortized Cost Basis			44		31
Current Period gross charge-offs			44		31
Consumer [Member] \| Other [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
2026/2025	7,929		7,929		11,892
2025/2024	12,321		12,321		12,052
2024/2023	4,678		4,678		6,028
2023/2022	4,299		4,299		4,719
2022/2021	3,361		3,361		3,432
Prior	3,340		3,340		1,554
Revolving Loans Amortized Cost Basis	12,967		12,967		13,403
Total ending loans balance	48,895		48,895		53,080
2026/2025			342		346
2025/2024			42		148
2024/2023			70		162
2023/2022			56		76
2022/2021			9		73
Prior			11		29
Revolving Loans Amortized Cost Basis			148		376
Current Period gross charge-offs			678		1,210
Consumer [Member] \| Performing [Member] \| Automobile [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
2026/2025	5,635		5,635		10,413
2025/2024	7,862		7,862		7,814
2024/2023	5,624		5,624		9,907
2023/2022	7,026		7,026		6,831
2022/2021	4,320		4,320		1,672
Prior	1,112		1,112		393
Revolving Loans Amortized Cost Basis	0		0		0
Total ending loans balance	31,579		31,579		37,030
Consumer [Member] \| Performing [Member] \| Home Equity [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
2026/2025	86		86		0
2025/2024	91		91		4
2024/2023	100		100		19
2023/2022	106		106		0
2022/2021	0		0		100
Prior	0		0		140
Revolving Loans Amortized Cost Basis	54,124		54,124		50,024
Total ending loans balance	54,507		54,507		50,287
Consumer [Member] \| Performing [Member] \| Other [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
2026/2025	7,928		7,928		11,889
2025/2024	12,298		12,298		12,012
2024/2023	4,658		4,658		6,005
2023/2022	4,263		4,263		4,696
2022/2021	3,360		3,360		3,425
Prior	3,325		3,325		1,535
Revolving Loans Amortized Cost Basis	12,967		12,967		13,403
Total ending loans balance	48,799		48,799		52,965
Consumer [Member] \| Nonperforming [Member] \| Automobile [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
2026/2025	3		3		32
2025/2024	87		87		63
2024/2023	42		42		46
2023/2022	43		43		106
2022/2021	82		82		0
Prior	29		29		0
Revolving Loans Amortized Cost Basis	0		0		0
Total ending loans balance	286		286		247
Consumer [Member] \| Nonperforming [Member] \| Home Equity [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
2026/2025	0		0		0
2025/2024	0		0		0
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
Prior	0		0		0
Revolving Loans Amortized Cost Basis	299		299		318
Total ending loans balance	299		299		318
Consumer [Member] \| Nonperforming [Member] \| Other [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
2026/2025	1		1		3
2025/2024	23		23		40
2024/2023	20		20		23
2023/2022	36		36		23
2022/2021	1		1		7
Prior	15		15		19
Revolving Loans Amortized Cost Basis	0		0		0
Total ending loans balance	$ 96		$ 96		$ 115

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