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Goodwill and Intangible Assets
9 Months Ended
Sep. 30, 2011
Goodwill and Intangible Assets [Abstract] 
Goodwill and Intangible Assets
11. Goodwill and Intangible Assets
The Company’s intangible assets consisted of the following:
                                                         
            September 30, 2011     December 31, 2010  
    Useful life             Accumulated                     Accumulated        
    (years)     Cost     amortization     Net     Cost     amortization     Net  
Acquired licenses
    6     $ 8,115     $ (8,115 )   $     $ 8,115     $ (7,001 )   $ 1,114  
Patents and technology
    10       3,900       (146 )     3,754                    
Trademarks
    10       800       (30 )     770                    
Customer lists
    10       2,900       (109 )     2,791                    
 
                                           
 
          $ 15,715     $ (8,400 )   $ 7,315     $ 8,115     $ (7,001 )   $ 1,114  
 
                                           
Amortization expense was $561 and $371 for the three months ended September 30, 2011 and 2010, respectively. Amortization expense was $1,399 and $1,114 for the nine months ended September 30, 2011 and 2010, respectively.
Goodwill
Goodwill allocated to the Company’s one business segment relates to the acquisition of StarTrak (See Note 3). For the three months ended September 30, 2011 there were no changes to goodwill.
Intangible Assets
The patents and the technology, trademarks and customer lists relate to the acquisition of StarTrak (See Note 3).
Estimated amortization expense for intangible assets subsequent to September 30, 2011 is as follows:
         
Years ending December 31,
       
Remainder of 2011
  $ 190  
2012
    760  
2013
    760  
2014
    760  
2015
    760  
Thereafter
    4,085  
 
     
 
  $ 7,315