Stockholders' Equity (Details 3) - Warrant [Member] - USD ($)	3 Months Ended	12 Months Ended
	Oct. 31, 2015	Jul. 31, 2015
Number of Shares
Outstanding at July 31, 2015	1,338,552
Issued	0
Exercised	0
Outstanding at October 31, 2015	1,338,552	1,338,552
Exercisable at October 31, 2015	613,522
Weighted- average Exercise Price
Outstanding at July 31, 2015	$ 19.53
Outstanding at October 31, 2015	19.53	$ 19.53
Exercisable at October 31, 2015	$ 24.88
Weighted- average Remaining Contractual Term (years)
Outstanding at October 31, 2015	3 years 3 months 18 days	3 years 6 months 18 days
Exercisable at October 31, 2015	4 years 7 months 17 days
Aggregate Intrinsic Value
Outstanding at October 31, 2015	$ 0
Exercisable at October 31, 2015	$ 0