RELATED PARTY TRANSACTIONS (Details) - St. Gabriel CC Company, LLC [Member] - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Related party transactions [Abstract]
Finished goods received from related party	$ 5,588	$ 4,498	$ 11,624	$ 9,182
Receivable from related party	2,919		2,919
Payable to related party	1,880		1,880
Related party receivables recorded in receivables	193		193
Services Provided [Member]
Related party transactions [Abstract]
Revenues from related party	1,083	844	2,010	1,722
Raw Materials Sold [Member]
Related party transactions [Abstract]
Revenues from related party	$ 8,451	$ 5,533	$ 15,729	$ 9,882

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