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Property and Equipment, Net (Tables)
6 Months Ended
Jun. 30, 2013
Property, Plant and Equipment [Abstract]  
Property and Equipment, Net
Property and equipment, net, as of June 30, 2013 and December 31, 2012 were as follows (in thousands):
 
 
June 30,
2013
 
December 31,
2012
Machinery and equipment
$
9,373

 
$
9,178

Computers and acquired software
3,777

 
3,758

Furniture and fixtures
248

 
248

Leasehold improvements
2,067

 
2,067

 
15,465

 
15,251

Less accumulated depreciation and amortization
(14,842
)
 
(14,668
)
 
$
623

 
$
583