Commitments (Details Narrative)	3 Months Ended
Aug. 31, 2017 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Commitments for purchase of production equipment	$ 359,000

The cash outflow for acquisition of machinery and equipment.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585

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