Quarterly report pursuant to Section 13 or 15(d)

INVENTORIES (Tables)

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INVENTORIES (Tables)
9 Months Ended
Sep. 30, 2018
Inventory Disclosure [Abstract]  
Schedule of inventories

Inventory is net of valuation adjustments of $1,513,000 and $2,678,000 as of September 30, 2018 and December 31, 2017, respectively. Inventory balances consisted of the following (in thousands):

  

    September 30, 2018     December 31, 2017  
Finished goods   $ 33,525     $ 35,652  
Work in progress     7,753       8,807  
Raw materials     7,260       7,601  
Low-carbon and RIN credits     4,585       7,952  
Other     1,643       1,538  
Total   $ 54,766     $ 61,550