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Balance Sheet Details (Goodwill) (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2016
USD ($)
Schedule of change in the carrying amount of goodwill  
Balance at December 31, 2015 $ 23,635
Foreign currency translation adjustments 305
Goodwill related to sale of product line (291)
Balance at June 30, 2016 $ 23,649