Commitments and Contingencies (Tables)

12 Months Ended

Apr. 30, 2016

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

Future minimum rental commitments under non-cancelable operating leases, by year and in the aggregate, are as follows at April 30, 2016 (in thousands):

Fiscal year ending April 30:	Minimum Lease Commitments
2017	$	6,437
2018	6,266
2019	5,041
2020	4,792
2021	4,034
Thereafter	20,764
Total	$	47,334