Leases - Schedule Of Future Minimum Payments For Capital Leases And Noncancelable Operating Leases (Details) $ in Thousands	Apr. 30, 2015 USD ($)
Capital leases
2016	$ 904
2017	868
2018	870
2019	876
2020	967
Thereafter	11,992
Total minimum lease payments	16,477
Less amount representing interest	6,834
Present value of net minimum lease payments	9,643
Operating leases
2016	910
2017	827
2018	814
2019	553
2020	246
Thereafter	87
Total minimum lease payments	$ 3,437