Concentration Of Credit Risk and Significant Customers (Details)	3 Months Ended		12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Mar. 31, 2011
Concentration Of Credit Risk And Significant Customers
Number of direct customer or indirect channel partner contributing more than 10% of accounts receivable balance	0
Percentage of accounts receivable contributed by customers	10.00%		13.00%
Number of customers contributing to 13% of accounts receivable			1
Percentage of revenue contributed by direct customer or indirect channel partner to total revenue	10.00%
Number of direct customer or indirect channel partner contributing more than 10% of total revenue	0	0