EMPLOYEE BENEFIT PLANS - Reconciliation of Changes in Plan's Benefit Obligations and Fair Value of Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
EMPLOYEE BENEFIT PLANS
Benefit obligation at beginning of year	$ 10,708	$ 11,556
Service cost including expenses	59	53	$ 44
Interest cost	469	442	464
Actuarial loss (gain)	94	(735)
Benefits paid and expected expenses	(657)	(608)
Benefit obligation at year-end	10,673	10,708	11,556
Fair value of plan assets at beginning of year	14,157	15,350
Actual return (loss) on plan assets	487	(579)
Benefits paid and actual expenses	(655)	(614)
Fair value of plan assets at year-end	13,989	14,157	$ 15,350
Funded status of plan at year end	3,316	3,449
Minimum required contribution	0
Amounts recognized in AOCI for net actuarial losses	$ 5,900	$ 5,700