Commitments and Contingencies (Details) - 3 months ended Oct. 31, 2014 - USD ($) $ in Millions	Total
Commitments and Contingencies [Abstract]
Litigation settlement date	September 15, 2014
Litigation Settlement, Amount	$ 0.1

Amount of judgment or settlement awarded to (against) the entity in respect of litigation.

No definition available.

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