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Accrued Liabilities
 3 Months Ended
Mar. 31, 2014
Payables And Accruals [Abstract]  
Accrued Liabilities

8. Accrued Liabilities

The Company’s accrued liabilities consisted of the following:

 

     March 31,      December 31,  
     2014      2013  

Accrued compensation and benefits

    $ 2,589       $ 3,438   

Warranty

      1,890         2,199   

Income tax payable

      391         81   

Contingent earn-out amounts

      1,081         24   

AIS deployment and license agreement

      149         192   

Accrued satellite network and other equipment

      281         212   

Other accrued expenses

      4,004         3,681   
  

 

 

     

 

 

  
   $ 10,385       $ 9,827   
  

 

 

     

 

 

  

For the three months ended March 31, 2014 and 2013, changes in accrued warranty obligations consisted of the following:

 

     March 31,  
     2014     2013  

Balance at January 1,

    $ 2,199      $ 2,762   

Warranty liabilites assumed from acquisition

      96        —     

Amortization of fair value adjustment of warranty liabilities acquired through acquisitions

      (19 )      (9 ) 

Reduction of warranty liabilities within the one-year measurement period assumed in connection with the acquisition of GlobalTrak

      (250 )      —     

Warranty expense

      60        65   

Warranty charges

      (196 )      (291 ) 
  

 

 

    

 

 

  

Balance at March 31,

    $ 1,890      $ 2,527