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Consolidated Statements of Comprehensive Loss (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2012
Net loss from continuing operations	$ (52,846)	$ (47,503)	$ (24,329)
Other comprehensive gain (loss), net of tax:
Foreign currency translation adjustment	386	(96)	(22)
Unrealized gain (loss) on investments	88	(30)	(50)
Total other comprehensive gain (loss), net of tax	474	(126)	(72)
Comprehensive loss	$ (52,372)	$ (47,629)	$ (24,401)

Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests.

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