Stock-Based Compensation (Tables)

9 Months Ended

Feb. 28, 2015

Non-Qualified Stock Options

Assumptions to Value Stock Options

The following assumptions were used to value these stock options:

Dividend yield	1.88	%
Expected volatility	50.92	%
Risk-free interest rate	1.88	%
Expected term (years)	6.0

Market-Based Restricted Common Shares

Assumptions to Value Stock Options

The following assumptions were used to determine the grant-date fair value and the derived service period for these restricted common shares:

Dividend yield	1.60	%
Expected volatility	44.00	%
Risk-free interest rate	1.70	%