LOANS AND ALLOWANCE FOR LOAN LOSSES - Impaired loans (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Recorded Investment
Total	$ 12,177,000		$ 12,177,000		$ 13,673,000
Unpaid Principal Balance
Total	15,142,000		15,142,000		16,637,000
Related Allowance
Total					0
Average Recorded Investment
Total	12,230,000	$ 15,113,000	12,806,000	$ 15,211,000
Interest Income Recognized
Total	75,000	84,000	222,000	278,000
Commercial and industrial
Recorded Investment
With no related allowance recorded	979,000		979,000		1,017,000
With an allowance recorded	0		0		0
Total	979,000		979,000		1,017,000
Unpaid Principal Balance
With no related allowance recorded	979,000		979,000		1,017,000
With an allowance recorded	0		0		0
Total	979,000		979,000		1,017,000
Related Allowance
With no related allowance recorded	0		0		0
With an allowance recorded	0		0		0
Total	0		0		0
Average Recorded Investment
With no related allowance recorded	987,000	1,042,000	997,000	1,061,000
Total	987,000	1,042,000	997,000	1,061,000
Interest Income Recognized
With no related allowance recorded	4,000	2,000	9,000	7,000
Total	4,000	2,000	9,000	7,000
commercial real estate
Recorded Investment
With no related allowance recorded	10,357,000		10,357,000		11,803,000
Total	10,357,000		10,357,000		11,803,000
Unpaid Principal Balance
With no related allowance recorded	13,289,000		13,289,000		14,735,000
Total	13,289,000		13,289,000		14,735,000
Related Allowance
With no related allowance recorded	0		0		0
With an allowance recorded					0
Total					0
Average Recorded Investment
With no related allowance recorded	10,400,000	12,890,000	10,962,000	12,673,000
With an allowance recorded				322,000
Total	10,400,000	12,890,000	10,962,000	12,995,000
Interest Income Recognized
With no related allowance recorded	71,000	82,000	213,000	270,000
Total	71,000	82,000	213,000	270,000
residential real estate
Recorded Investment
With no related allowance recorded	841,000		841,000		853,000
With an allowance recorded	0		0		0
Total	841,000		841,000		853,000
Unpaid Principal Balance
With no related allowance recorded	874,000		874,000		885,000
With an allowance recorded	0		0		0
Total	874,000		874,000		885,000
Related Allowance
With no related allowance recorded	0		0		0
With an allowance recorded	0		0		0
Total					$ 0
Average Recorded Investment
With no related allowance recorded	843,000	1,181,000	847,000	1,155,000
Total	$ 843,000	$ 1,181,000	$ 847,000	1,155,000
Interest Income Recognized
With no related allowance recorded				1,000
Total				$ 1,000