SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - CHANGES IN ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2016 USD ($)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 56,809
Ending balance	57,013
AOCI Attributable to Parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(101)
Other comprehensive (loss) income	(268)
Amounts reclassified out of accumulated other comprehensive loss	132
Ending balance	(237)
Accumulated Foreign Currency Adjustment Attributable to Parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(99)
Other comprehensive (loss) income	(275)
Amounts reclassified out of accumulated other comprehensive loss	132
Ending balance	(242)
Accumulated Net Investment Gain (Loss) Attributable to Parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(2)
Other comprehensive (loss) income	7
Amounts reclassified out of accumulated other comprehensive loss	0
Ending balance	$ 5