Income Taxes (Details Textual)	12 Months Ended
Jul. 31, 2015
Income Taxes [Line Items]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2026

Expiration date of each operating loss carryforward included in operating loss carryforward, in CCYY-MM-DD format.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32559-109319

Name:	us-gaap_OperatingLossCarryforwardsExpirationDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration