Earnings (loss) per common share (EPS) (Tables)

3 Months Ended

Jul. 31, 2015

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

		Three Months Ended
		July 31,
		2015			2014
Net loss	$	(1,111,105	)	$	(1,063,373	)
Weighted average common shares outstanding – basic and diluted		42,366,916			42,592,851
Basic and diluted EPS	$	(0.03	)	$	(0.02	)