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Inventory
9 Months Ended
Sep. 30, 2013
Inventory Disclosure [Abstract]  
Inventory
Inventory

Our inventory, net of allowance for obsolescence of $258,000 at September 30, 2013 and $211,000 at December 31, 2012, consisted of the following amounts:
 
September 30, 2013
 
December 31, 2012
 
(in thousands)
Raw materials
$
22,705

 
$
19,654

Work in process
4,840

 
6,855

 
$
27,545

 
$
26,509



During the nine months ended September 30, 2013 and 2012 there were no write offs of obsolete inventory against the allowance for obsolescence.