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INCOME TAXES (Details) (USD $)
12 Months Ended
Apr. 30, 2013
Apr. 30, 2012
Loss from continuing operations before income taxes:    
Domestic $ (4,186,354) $ (14,245,758)
Foreign (3,037,790) (569,023)
Loss from continuing operations before income tax (benefit) provision $ (7,224,144) $ (14,814,781)