SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Changes in AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Changes in Accumulated Other Comprehensive Income (Loss)
Beginning Balance	$ (433)	$ (115)
Other comprehensive (loss) income before reclassifications	399	182
Amounts reclassified from accumulated other comprehensive loss	17	3
Net current period change in accumulated other comprehensive income (loss)	416	185
Ending Balance	(17)	70
Accumulated Net Unrealized Investment Gain Loss
Changes in Accumulated Other Comprehensive Income (Loss)
Beginning Balance	(444)	(115)
Other comprehensive (loss) income before reclassifications	456	192
Amounts reclassified from accumulated other comprehensive loss	17	3
Net current period change in accumulated other comprehensive income (loss)	473	195
Ending Balance	29	80
Cumulative Translation Adjustment
Changes in Accumulated Other Comprehensive Income (Loss)
Beginning Balance	11
Other comprehensive (loss) income before reclassifications	(57)	(10)
Net current period change in accumulated other comprehensive income (loss)	(57)	(10)
Ending Balance	$ (46)	$ (10)