DERIVATIVE FINANCIAL INSTRUMENTS (Details) - Interest Rate Swaps $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)	Oct. 31, 2013 USD ($) derivative
Derivative financial instruments
Number of derivative instruments | derivative						2
Notional amount of interest rate swap derivatives						$ 25,000
Ratio of notional amount to term loan (as a percent)						50.00%
Notional amount of interest rate swap derivatives at maturity						$ 6,673
Amount hedged	$ 21,000		$ 21,000
Hedge ineffectiveness recorded in earnings	0	$ 0	0	$ 0
Estimated amount to be reclassified as an increase to interest expense			138
Effect of derivative financial instruments on the consolidated statement of income and comprehensive income
Net deferral in OCI of derivatives (effective portion)	(9)	(148)	(160)	(216)
Interest expense
Effect of derivative financial instruments on the consolidated statement of income and comprehensive income
Net reclassification from AOCI into income (effective portion)	(50)	$ 58	(101)	$ 116
Accrued liabilities.
Derivative financial instruments
Interest rate swaps	(61)		(61)		$ (2)
Total Liabilities
Derivative financial instruments
Interest rate swaps	$ (61)		$ (61)		$ (2)