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Related Party Transactions (Tables)
3 Months Ended
Apr. 30, 2013
Related Party Transactions [Abstract]  
Revenue Recognized from Related Party
The following table shows revenue recognized from these customers:
Three months ended April 30,
2013
 
2012
Revenues from customers
$
28,536

 
$
9,002

Percentage of total revenues
12.6
%
 
3.6
%