PENSION PLAN, Plan's funded status (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CHANGES IN BENEFIT OBLIGATIONS [Roll Forward]
Benefit obligation-beginning of year	$ 23,341	$ 24,299	$ 20,314
Service cost	28	28	23
Interest cost	888	884	892
Actuarial (gain) loss	(255)	(782)	4,149
Benefits paid	(1,086)	(1,088)	(1,079)
Benefit obligation at end of year	22,916	23,341	24,299
CHANGE IN PLAN ASSETS [Roll Forward]
Fair value of plan assets-beginning of year	17,792	19,000	18,792
Actual return on plan assets	842	(120)	1,017
Employer contributions	0	0	270
Benefits paid	(1,086)	(1,088)	(1,079)
Fair value of plan assets-end of year	17,548	17,792	19,000
BENEFIT OBLIGATION IN EXCESS OF FAIR VALUE FUNDED STATUS:	$ (5,368)	$ (5,549)	$ (5,299)