Stock Options (Tables)

12 Months Ended

May. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Option Activity

Following is a summary of option activity for the two years ended May 31, 2015:

	Number			Weighted Average Exercise Price		Remaining Contractual Life (years)		Intrinsic Value
Total outstanding, May 31, 2013		2,450,000		$	0.16
Exercised during fiscal year 2014		(350,000	)	$	0.40
Total outstanding May 31, 2014		2,100,000		$	0.12		7.0
Exercised during fiscal year 2015		(950,000	)	$	0.12
Total outstanding May 31, 2015		1,150,000		$	0.12		7.0
Exercisable as of May 31, 2015		100,000		$	0.12		7.0	$	18,000
Non-vested as of May 31, 2015		1,050,000		$	0.12		7.0	$	189,000