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

3 Months Ended

Jul. 31, 2020

Share-based Payment Arrangement [Abstract]

Schedule of Stock Options Activity

Information concerning the issuance of stock options under the 2009 Plan is presented in the following table:

	Number of option shares	Weighted average option exercise price
Outstanding at April 30, 2020	43,189	$	44.39
Exercised	4,748	44.39
Outstanding at July 31, 2020	38,441	$	44.39

Schedule of Restricted Stock Units Award Activity

Information concerning the unvested restricted stock units under the 2009 Plan and the 2018 Plan is presented in the following table:

Unvested at April 30, 2020	473,799
Granted	190,601
Vested	(146,150)
Forfeited	(7,489)
Unvested at July 31, 2020	510,761