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Inventories
 6 Months Ended
Jun. 30, 2016
Inventory Disclosure [Abstract]  
Inventories

5.  INVENTORIES

 

The components of inventories are summarized below (in thousands):

 

    June 30,
2016		     December 31,
2015		  
Raw materials   $ 11,467     $ 7,115  
Work in process     5,116       3,918  
Finished goods     9,820       7,134  
Provision for excess and obsolete inventory     (534 )     (504 )
Total inventories   $ 25,869     $ 17,663  

 

Included in raw materials and finished goods at June 30, 2016 and December 31, 2015 are goods in transit of approximately $4.2 million and $2.1 million, respectively.

 

During the quarter, $4.6 million of raw materials not pledged to our secured creditor were used as collateral to secure short term borrowings under a product financing arrangement.