Acquisition-Related Intangible Assets (Detail) - USD ($) $ in Thousands	Apr. 30, 2015	Apr. 30, 2014
Acquired Finite Lived Intangible Assets
Acquired Finite-Lived Intangible Assets [Line Items]
Acquisition-Related Intangible Assets	$ 5,898	$ 2,708
Accumulated amortization	(3,150)	(2,180)
Finite-Lived Intangible Assets, Net, Total	2,748	528
Acquired Finite Lived Intangible Assets | Current Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Acquisition-Related Intangible Assets	3,342	1,842
Acquired Finite Lived Intangible Assets | Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Acquisition-Related Intangible Assets	2,190	790
Acquired Finite Lived Intangible Assets | Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Acquisition-Related Intangible Assets	76	76
Acquired Finite Lived Intangible Assets | Non-compete
Acquired Finite-Lived Intangible Assets [Line Items]
Acquisition-Related Intangible Assets	290
Logility Stock
Acquired Finite-Lived Intangible Assets [Line Items]
Acquisition-Related Intangible Assets	707	707
Accumulated amortization	(707)	(701)
Finite-Lived Intangible Assets, Net, Total		6
Logility Stock | Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Acquisition-Related Intangible Assets	477	477
Logility Stock | Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Acquisition-Related Intangible Assets	155	155
Logility Stock | Distribution Channel Other
Acquired Finite-Lived Intangible Assets [Line Items]
Acquisition-Related Intangible Assets	$ 75	$ 75