Deferred Revenue (Details Narrative)	3 Months Ended
Aug. 31, 2018 USD ($)
Revenue Recognition and Deferred Revenue [Abstract]
Recognized revenue	$ 3,280,500

Amount of revenue recognized that was previously reported as deferred or unearned revenue.

No definition available.

Name:	us-gaap_DeferredRevenueRevenueRecognized1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration