Compensation Related Costs and Share Based Payments (Tables)

6 Months Ended

Oct. 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	28,218	44.39
Outstanding at October 31, 2020	14,971	$	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	204,538
Vested	(151,654)
Forfeited	(10,306)
Performance Award Adjustments	56,071
Unvested at October 31, 2020	572,448