DESCRIPTION OF THE BUSINESS AND BASIS OF PRESENTATION (Details Textual)	3 Months Ended	6 Months Ended
Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2016	Oct. 31, 2015
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage Of International Operation	0.00%	60.00%	0.00%	60.00%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration