RETIREMENT PLANS- Schedule of change in benefit obligation and fair value of plan assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
SERP and DRP
Change in benefit obligation:
Projected benefit obligation at beginning of year	$ 4,102	$ 3,760
Service cost	201	146
Interest cost	79	98
Actuarial (gain) loss	(100)	448
Benefits paid	(341)	(350)
Prior service credit as a result of plan amendments	0	0
Projected benefit obligation at end of year	3,941	4,102
Reconciliation of plan assets:
Fair value of plan assets at beginning of year	0	0
Actual return on plan assets	0	0
Employer contributions	341	350
Benefits and Settlements paid	(341)	(350)
Fair value of plan assets at end of year	0	0
Unfunded status	3,941	4,102
Post Retirement
Change in benefit obligation:
Projected benefit obligation at beginning of year	1,881	1,946
Service cost	1	1
Interest cost	38	54
Actuarial (gain) loss	(215)	(9)
Benefits paid	(92)	(111)
Prior service credit as a result of plan amendments	0	0
Projected benefit obligation at end of year	1,613	1,881
Reconciliation of plan assets:
Fair value of plan assets at beginning of year	0	0
Actual return on plan assets	0	0
Employer contributions	92	111
Benefits and Settlements paid	(92)	(111)
Fair value of plan assets at end of year	0	0
Unfunded status	$ 1,613	$ 1,881