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Major Customers Accounted for at Least 10% of Total Revenues (Details)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Ingram Micro, Inc.
Percent of total revenues	32.00%	45.00%
Threshold percentage for disclosure	10.00%	10.00%
BlueStar, Inc.
Percent of total revenues	23.00%	15.00%
Threshold percentage for disclosure	10.00%	10.00%
ScanSource, Inc.
Percent of total revenues		14.00%
Threshold percentage for disclosure	10.00%	10.00%
ScanSource Europe SPRL
Percent of total revenues		11.00%
Threshold percentage for disclosure	10.00%	10.00%

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