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LOANS AND ALLOWANCE FOR LOAN LOSSES - Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Unpaid Principal Balance
Total	$ 7,915		$ 7,915		$ 18,205
Recorded Investment
Total	7,889		7,889		11,647
Allowance for Loan Losses Allocated	1,405		1,405		3,030
Average Recorded Investment
Average recorded investment, total	7,604	$ 12,672	9,314	$ 11,464
Interest Income Recognized
Total	18	55	38	96
Residential Mortgages
Unpaid Principal Balance
With no related allowance recorded	777		777		951
Recorded Investment
With no related allowance recorded	768		768		938
Average Recorded Investment
With no related allowance recorded	846	950	890	1,034
Interest Income Recognized
With no related allowance recorded	9	12	19	29
Construction | Commercial Mortgages
Unpaid Principal Balance
With no related allowance recorded	12		12		129
Recorded Investment
With no related allowance recorded	12		12		130
Average Recorded Investment
With no related allowance recorded	55	151	88	167
Interest Income Recognized
With no related allowance recorded	0	1	0	5
Commercial mortgages, other | Commercial Mortgages
Unpaid Principal Balance
With no related allowance recorded	4,261		4,261		6,940
With an allowance recorded	41		41		3,550
Recorded Investment
With no related allowance recorded	4,260		4,260		4,278
With an allowance recorded	41		41		3,559
Allowance for Loan Losses Allocated	41		41		1,571
Average Recorded Investment
With no related allowance recorded	4,150	4,665	4,171	4,743
With an allowance recorded	42	3,644	1,563	1,905
Interest Income Recognized
With no related allowance recorded	7	8	14	23
With an allowance recorded	0	25	0	25
Home equity lines and loans | Consumer Loans
Unpaid Principal Balance
With no related allowance recorded	160		160		185
With an allowance recorded	133		133		146
Recorded Investment
With no related allowance recorded	144		144		169
With an allowance recorded	133		133		146
Allowance for Loan Losses Allocated	41		41		65
Average Recorded Investment
With no related allowance recorded	149	184	157	299
With an allowance recorded	134	155	139	160
Interest Income Recognized
With no related allowance recorded	0	2	0	5
With an allowance recorded	0	0	0	0
Commercial and industrial | Commercial and Agricultural
Unpaid Principal Balance
With no related allowance recorded	570		570		954
With an allowance recorded	1,961		1,961		5,350
Recorded Investment
With no related allowance recorded	569		569		948
With an allowance recorded	1,962		1,962		1,479
Allowance for Loan Losses Allocated	1,323		1,323		$ 1,394
Average Recorded Investment
With no related allowance recorded	585	1,378	761	1,645
With an allowance recorded	1,643	1,545	1,545	1,511
Interest Income Recognized
With no related allowance recorded	0	3	0	3
With an allowance recorded	$ 2	$ 4	$ 5	$ 6

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