Share-Based Compensation (Narrative) (Details) (USD $)	3 Months Ended				0 Months Ended	3 Months Ended
	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2014 Restricted Stock Units "RSUs" [Member]	Oct. 31, 2014 Employee Stock Option [Member]	Oct. 24, 2014 Director [Member] Restricted Stock Units "RSUs" [Member]	Oct. 31, 2014 Share-based Compensation Award, Tranche Two [Member] Director [Member]	Oct. 31, 2014 Share-based Compensation Award, Tranche One [Member] Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted					200,000
Vesting percentage						50.00%	50.00%
Shares vested			307,500
Shares outstanding			4,717,500
Shares expected to vest			3,657,500
Unrecognized non-cash compensation costs			$ 3,852,000	$ 127,000
Unrecognized non-cash compensation costs, weighted average period			1 year 4 months 2 days	2 years 1 month 13 days
Stock options granted				0
Share-based compensation	$ 503,000	$ 89,000