Quarterly report pursuant to Section 13 or 15(d)

3. Inventories (Tables)

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3. Inventories (Tables)
 6 Months Ended
Jun. 30, 2017
Inventory Disclosure [Abstract]  
Schedule of Inventories

Inventory balances consisted of the following (in thousands):

 

    June 30, 2017     December 31, 2016  
Finished goods   $ 38,144     $ 33,773  
Work in progress     8,239       7,092  
Raw materials     7,752       6,571  
LCFS credits     7,300       10,926  
Other     1,652       1,708  
Total   $ 63,087     $ 60,070