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Business Acquisitions (Schedule of ProForma Information (Details) (Sierra Wireless AirCard Business [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 29, 2013
Sep. 29, 2013
Sierra Wireless AirCard Business [Member]
   
Business Acquisition [Line Items]    
Revenue $ 362 $ 1,058
Net Income $ 15 $ 45