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Inventory
6 Months Ended
Jun. 30, 2015
Inventory Disclosure [Abstract]  
Inventory
Inventory

Our inventory, net of allowance for obsolescence of $295,500 and $225,000 at June 30, 2015 and December 31, 2014, respectively, consisted of the following amounts:
 
June 30, 2015
 
December 31, 2014
 
(in thousands)
Raw materials
$
22,756

 
$
25,984

Work in process
4,489

 
6,640

 
$
27,245

 
$
32,624



During the six months ended June 30, 2015 and 2014, there were no write-offs of obsolete inventory against the allowance for obsolescence.