Segment Information and Significant Customers (Details 1)	Jul. 31, 2011	Jul. 31, 2010	Jul. 31, 2009
ScanSource, Inc. (Catalyst) [Member]
Significant channel partners as a percentage of total revenues
Significant channel partners as a percentage of total revenues	19.40%	17.10%	0.00%
Avnet Logistics U.S LP [Member]
Significant channel partners as a percentage of total revenues
Significant channel partners as a percentage of total revenues	17.10%	16.60%	10.10%
Alcatel-Lucent [Member]
Significant channel partners as a percentage of total revenues
Significant channel partners as a percentage of total revenues	13.90%	10.40%	14.50%