EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined contribution plan, age of eligibility (years)	21 years
Defined contribution plan, required service period prior to plan participation (days)	60 days
Defined contribution plan, employer matching contribution (percent)	50.00%
Defined contribution plan, maximum annual contribution per employee (percent)	2.50%
Defined contribution plan, employer discretionary contribution amount	$ 987	$ 997	$ 928
Deferred compensation arrangement with individual, interest rate on notes payable (percent)	5.00%
Deferred compensation arrangement with individual, notes payable plus accrued interest	$ 122	$ 81
Minimum
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Deferred compensation arrangement with individual, requisite service period (years)	5 years
Maximum
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Deferred compensation arrangement with individual, requisite service period (years)	10 years