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Major Customers Accounted for at Least 10% of Total Revenues (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Ingram Micro Inc.        
Percent of total revenues 33.00% 35.00% 29.00% 34.00%
Threshold percentage for disclosure 10.00% 10.00% 10.00% 10.00%
Scansource, Inc.        
Percent of total revenues 21.00% 25.00% 20.00% 19.00%
Threshold percentage for disclosure 10.00% 10.00% 10.00% 10.00%
BlueStar, Inc.        
Percent of total revenues 21.00% 18.00% 21.00% 17.00%
Threshold percentage for disclosure 10.00% 10.00% 10.00% 10.00%