PENSION PLAN, Plan's funded status (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
CHANGES IN BENEFIT OBLIGATIONS [Roll Forward]
Benefit obligation-beginning of year	$ 24,299	$ 20,314	$ 23,169
Service cost	28	23	37
Interest cost	884	892	790
Actuarial (gain) loss	(782)	4,149	(2,614)
Benefits paid	(1,088)	(1,079)	(1,068)
Benefit obligation at end of year	23,341	24,299	20,314
CHANGE IN PLAN ASSETS [Roll Forward]
Fair value of plan assets-beginning of year	19,000	18,792	16,268
Actual return on plan assets	(120)	1,017	2,919
Employer contributions	0	270	673
Benefits paid	(1,088)	(1,079)	(1,068)
Fair value of plan assets-end of year	17,792	19,000	18,792
BENEFIT OBLIGATION IN EXCESS OF FAIR VALUE FUNDED STATUS:	$ (5,549)	$ (5,299)	$ (1,522)