Stockholders' Equity (Schedule of Outstanding Options and Warrants) (Details) (USD $)	6 Months Ended	12 Months Ended
	Jan. 31, 2015	Jul. 31, 2014
Options [Member]
Number of Shares
Outstanding, beginning balance	3,047,500
Granted	105,000
Forfeited/expired/cancelled	(85,000)
Outstanding, ending balance	3,067,500	3,047,500
Exercisable	1,570,416
Weighted- average Exercise Price
Outstanding	$ 9.00
Granted	$ 10.00
Forfeited/expired/cancelled	$ 11.21
Outstanding	$ 9.00	$ 9.00
Exercisable	$ 10.00
Weighted- average Remaining Contractual Term (years)
Granted	5 years
Outstanding	8 years 3 months 7 days	8 years 6 months 22 days
Exercisable	8 years 2 months 8 days
Aggregate Intrinsic Value
Outstanding		$ 12,000
Exercisable
Warrants [Member]
Number of Shares
Outstanding, beginning balance	1,254,752
Granted	38,800
Exercised
Outstanding, ending balance	1,293,552	1,254,752
Exercisable	568,552
Weighted- average Exercise Price
Outstanding	$ 20.00
Granted	$ 8.00
Exercised
Outstanding	$ 20.00	$ 20.00
Exercisable	$ 20.00
Weighted- average Remaining Contractual Term (years)
Granted
Outstanding	4 years 3 months 29 days	4 years 3 months 29 days
Exercisable	4 years 29 days
Aggregate Intrinsic Value
Outstanding
Exercisable