Disclosure of Compensation Related Costs, Share Based Payments (Tables)

9 Months Ended

Jan. 31, 2015

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

Schedule of Stock Options Activity

Information concerning the issuance of stock options under the Plan and Prior Plans is presented in the following table:

	Number of option shares	Weighted average option exercise price
Outstanding at April 30, 2014	712,024	$	36.73
Granted	—	—
Exercised	275,509	38.24
Forfeited	—	—
Outstanding at January 31, 2015	436,515	$	35.77

Schedule of Restricted Stock Units Award Activity

Information concerning the issuance of restricted stock units under the Plan is presented in the following table:

Unvested at April 30, 2014	148,546
Granted	91,000
Vested	(38,198	)
Forfeited	(5,393	)
Unvested at January 31, 2015	195,955