ACCRUED LIABILITIES (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Payables and Accruals [Abstract]
Accrued payroll and employee benefits	$ 5,961	$ 7,949
Accrued property taxes	547	659
Accrued purchase orders	1,126	1,549
Accrued taxes	3,882	3,731
Other	3,404	4,167
Total accrued liabilities	$ 14,920	$ 18,055
Percentage of total current liabilities	5.00%