Consolidated Statements of Stockholders' Equity (Deficit) (Parenthetical)	12 Months Ended
Jul. 31, 2017
Statement of Stockholders' Equity [Abstract]
Stock split conversion ratio	0.01

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770

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Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration