Stock-Based Compensation (Tables)

12 Months Ended

May 31, 2016

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

Fair Value of Options Granted Estimated at Date of Grant Using Weighted Average Assumptions

The fair value of the options granted during fiscal 2016 were estimated at the date of grant using the following weighted average assumptions:

Volatility	55.8	%
Risk-free interest rate	2.22	%
Expected option life in years	9.72
Dividend yield	0	%