Related Party Transactions (Tables)

9 Months Ended

Oct. 31, 2012

Notes To Financial Statements [Abstract]

Revenue Recognized from Related Party

The following table shows revenue recognized from these customers:

	Three months ended October 31,						Nine months ended October 31,
	2012			2011			2012			2011
Revenues from customers	$	7,377		$	5,821		$	38,651		$	30,132
Percentage of total revenues	2.7		%	2.3		%	5.1		%	4.3		%