INCOME TAXES - Schedule of Provision for (Benefit from) Income Taxes Reconciliation to Amount Computed by Multiplying Income (Loss) Before Income Taxes by the U.S. Statutory Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Benefits at statutory rate	$ 3,912	$ 3,577	$ (4,031)
Deferred tax asset valuation allowance	(3,705)	(3,182)	5,256
Foreign earnings taxed at U.S. rates	208	403	1,966
Foreign earnings taxed at different rates	(388)	(540)	(3,315)
State taxes, net of Federal benefit	416	18	34
Nondeductible stock option expense	173	244	322
Uncertain tax position reserve release	41	(188)	(579)
Other	205	7	(195)
Provisions for (benefit from) income taxes	$ 862	$ 339	$ (542)