ACCRUED EXPENSES (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
ACCRUED EXPENSES
Bonus	$ 62	$ 906
Payroll	79	126
Vacation	55	91
Severance	1,160	385
Other accrued expenses	282	451
Total accrued expenses	$ 1,638	$ 1,959