Goodwill (Detail) - USD ($) $ in Thousands		12 Months Ended
		Apr. 30, 2017	Apr. 30, 2016
Goodwill [Line Items]
Goodwill, Beginning Balance		$ 18,749	$ 18,749
Goodwill related to the AdapChain Acquisition		800
Goodwill, Ending Balance		19,549	18,749
Enterprise Resource Planning
Goodwill [Line Items]
Goodwill, Beginning Balance	[1]	1,812	1,812
Goodwill related to the AdapChain Acquisition	[1]	0	0
Goodwill, Ending Balance	[1]	1,812	1,812
Supply Chain Management
Goodwill [Line Items]
Goodwill, Beginning Balance	[2]	16,937	16,937
Goodwill related to the AdapChain Acquisition	[2]	800	0
Goodwill, Ending Balance	[2]	$ 17,737	$ 16,937

[1] Goodwill related to New Generation Computing, Inc.

[2] Goodwill related to Logility, Inc., Demand Management, Inc. and their acquisitions