ACCRUED LIABILITIES (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Payables and Accruals [Abstract]
Accrued payroll and employee benefits	$ 1,457	$ 2,166
Accrued property taxes	522	748
Accrued purchases	0	664
Other	2,689	2,891
Total accrued liabilities	$ 4,668	$ 6,469