INCOME TAXES - Significant Components of Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Significant components of the Company's deferred tax assets and liabilities
Tax carryforwards	$ 449	$ 767
Accrued expenses	1,144	1,744
Other	23	(8)
Net deferred tax assets	1,616	2,503
Net Deferred Tax Assets
Gross deferred tax assets	1,649	2,580
Gross deferred tax liabilities	(33)	(77)
Net deferred tax assets	$ 1,616	$ 2,503