Condensed Consolidated Statement of Changes in Stockholders' Equity (Unaudited) (USD $) In Thousands, except Share data	Total	Common Stock	Treasury Stock	Additional Paid in Capital	Accumulated Other Comprehensive (Loss)	Accumulated Deficit
Balance at beginning at Apr. 30, 2012	$ 93,598	$ 6		$ 158,769	$ (20)	$ (65,157)
Shares, Outstanding, Beginning Balance at Apr. 30, 2012		58,780	(250)
Stock issued to acquire PowerReviews, Value	119,696	1		119,695
Stock issued to acquire PowerReviews, shares		6,381
Issuance of common stock (net of issuance costs), value	51,937			51,937
Issuance of common stock (net of issuance costs), shares		3,625
Excess tax benefit related to stock options	82			82
Stock-based expense	12,338			12,338
Exercise of stock options, value	781			781
Exercise of stock options, shares		244
Foreign currency translation adjustment	(70)				(70)
Change in unrealized (loss)/gain on investments	(22)				(22)
Net loss	(18,539)					(18,539)
Balance at ending at Jul. 31, 2012	$ 259,801	$ 7		$ 343,602	$ (112)	$ (83,696)
Shares, Outstanding, Ending Balance at Jul. 31, 2012		69,030	(250)