Quarterly report pursuant to Section 13 or 15(d)

Components of Inventory (Detail)

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Components of Inventory (Detail) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Components of inventory, net of allowances    
Raw materials $ 3,668 $ 3,627
Work-in-process 1,614 1,379
Finished goods 7,285 7,560
Inventory, net $ 12,567 $ 12,566