INTERIM CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $)	3 Months Ended		6 Months Ended
	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2013	Oct. 31, 2012
Net income (loss) for the period	$ (2,111,228)	$ (325,105)	$ (3,336,519)	$ 542,433
Other comprehensive income (loss):
Foreign currency translation adjustments	(154,988)	31,857	(284,227)	(128,709)
Comprehensive income (loss)	$ (2,266,216)	$ (293,248)	$ (3,620,746)	$ 413,724