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

3 Months Ended

Jul. 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, 2015	401,800	$	36.55
Granted	—	—
Exercised	49,500	36.46
Forfeited	—	—
Outstanding at July 31, 2015	352,300	$	36.56

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, 2015	193,930
Granted	104,200
Vested	(31,480	)
Forfeited	—
Unvested at July 31, 2015	266,650