ACCRUED EXPENSES (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
ACCRUED EXPENSES
Accrued bonus	$ 699	$ 906
Accrued payroll	107	126
Accrued vacation	214	91
Accrued severance	187	385
Other accrued expenses	686	451
Total accrued expenses	$ 1,893	$ 1,959