Goodwill (Detail) - USD ($) $ in Thousands		12 Months Ended
		Apr. 30, 2015	Apr. 30, 2014
Goodwill [Line Items]
Goodwill, Beginning Balance		$ 13,819	$ 12,601
Goodwill, Ending Balance		18,749	13,819
Taylor Manufacturing Systems, USA, LLC
Goodwill [Line Items]
Goodwill related to the Acquisition			1,218
MID Retail, Inc.
Goodwill [Line Items]
Goodwill related to the Acquisition		4,930
Enterprise Resource Planning
Goodwill [Line Items]
Goodwill, Beginning Balance	[1]	1,812	1,812
Goodwill, Ending Balance	[1]	1,812	1,812
Supply Chain Management
Goodwill [Line Items]
Goodwill, Beginning Balance	[2]	12,007	10,789
Goodwill, Ending Balance	[2]	16,937	12,007
Supply Chain Management | Taylor Manufacturing Systems, USA, LLC
Goodwill [Line Items]
Goodwill related to the Acquisition	[2]		$ 1,218
Supply Chain Management | MID Retail, Inc.
Goodwill [Line Items]
Goodwill related to the Acquisition	[2]	$ 4,930

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

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