Accounting for Stock-Based Compensation (Tables)

3 Months Ended

Aug. 31, 2016

Accounting for Stock-Based Compensation

Schedule of assumptions used in the Black-Scholes option pricing model to estimate the fair value of stock option grant

Risk-free interest rate	1.0	%
Expected volatility of common stock	36.8	%
Dividend yield	1.3	%
Expected option term in years	4.0