Goodwill (Detail) (USD $) In Thousands, unless otherwise specified				12 Months Ended														12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2014 Taylor Manufacturing Systems, USA, LLC	Aug. 14, 2013 Taylor Manufacturing Systems, USA, LLC	Apr. 30, 2014 Enterprise Resource Planning		Apr. 30, 2013 Enterprise Resource Planning		Apr. 30, 2012 Enterprise Resource Planning		Apr. 30, 2014 Supply Chain Management		Apr. 30, 2013 Supply Chain Management		Apr. 30, 2012 Supply Chain Management		Apr. 30, 2014 Supply Chain Management Taylor Manufacturing Systems, USA, LLC
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 13,819	$ 12,601	$ 12,601		$ 1,218	$ 1,812	[1]	$ 1,812	[1]	$ 1,812	[1]	$ 12,007	[2]	$ 10,789	[2]	$ 10,789	[2]
Goodwill related to the Taylor Manufacturing Systems, USA, LLC Acquisition				1,218														1,218	[2]
Goodwill, Ending Balance	$ 13,819	$ 12,601	$ 12,601		$ 1,218	$ 1,812	[1]	$ 1,812	[1]	$ 1,812	[1]	$ 12,007	[2]	$ 10,789	[2]	$ 10,789	[2]

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

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