LOANS AND ALLOWANCE FOR LOAN LOSSES - Impaired loans (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Recorded Investment
Total	$ 12,284,000		$ 12,284,000		$ 13,673,000
Unpaid Principal Balance
Total	15,249,000		15,249,000		16,637,000
Related Allowance
Total					0
Average Recorded Investment
Total	12,646,000	$ 15,523,000	13,100,000	$ 15,261,000
Interest Income Recognized
Total	73,000	98,000	147,000	194,000
Commercial and Industrial [Member]
Recorded Investment
With no related allowance recorded	991,000		991,000		1,017,000
With an allowance recorded	0		0		0
Total	991,000		991,000		1,017,000
Unpaid Principal Balance
With no related allowance recorded	991,000		991,000		1,017,000
With an allowance recorded	0		0		0
Total	991,000		991,000		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	998,000	1,057,000	1,004,000	1,071,000
With an allowance recorded	0	0
Total	998,000	1,057,000	1,004,000	1,071,000
Interest Income Recognized
With no related allowance recorded	3,000	2,000	5,000	5,000
With an allowance recorded	0	0
Total	3,000	2,000	5,000	5,000
Commercial Real Estate
Recorded Investment
With no related allowance recorded	10,448,000		10,448,000		11,803,000
Total	10,448,000		10,448,000		11,803,000
Unpaid Principal Balance
With no related allowance recorded	13,381,000		13,381,000		14,735,000
Total	13,381,000		13,381,000		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	10,801,000	12,750,000	11,247,000	12,564,000
With an allowance recorded	0	483,000		484,000
Total	10,801,000	13,233,000	11,247,000	13,048,000
Interest Income Recognized
With no related allowance recorded	70,000	95,000	142,000	188,000
With an allowance recorded	0	0
Total	70,000	95,000	142,000	188,000
Residential Real Estate
Recorded Investment
With no related allowance recorded	845,000		845,000		853,000
With an allowance recorded	0		0		0
Total	845,000		845,000		853,000
Unpaid Principal Balance
With no related allowance recorded	877,000		877,000		885,000
With an allowance recorded	0		0		0
Total	877,000		877,000		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	847,000	1,233,000	849,000	1,142,000
With an allowance recorded	0	0
Total	847,000	1,233,000	$ 849,000	1,142,000
Interest Income Recognized
With no related allowance recorded	0	1,000		1,000
With an allowance recorded	0	0
Total	$ 0	$ 1,000		$ 1,000