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Intangible Assets (Tables)
 9 Months Ended
Sep. 30, 2013
Purchased Patents  
Schedule of gross carrying amount and related accumulated amortization of the intangibles

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

September 30, 2013

 

 

 

 

 

 

 

(unaudited)

 

December 31, 2012

 

 

Weighted-

 

Gross Carrying

 

Accumulated

 

Gross Carrying

 

Accumulated

 

 

Average Life

 

Amount

 

Amortization

 

Amount

 

Amortization

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Purchased patents

 

10.0

 

$
2,292 

 

$
1,781 

 

$
2,292 

 

$
1,609 

Patent defense costs

 

n/a

 

$
306 

 

$

 —

 

$

 —

 

$

 —