ACCRUED EXPENSES (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
ACCRUED EXPENSES
Accrued bonus	$ 382	$ 906
Accrued payroll	208	126
Accrued vacation	157	91
Accrued severance	293	385
Other accrued expenses	381	451
Total accrued expenses	$ 1,421	$ 1,959