Accounts Payable and Accrued Expenses - Accounts payable and accrues expenses (Details) (USD $)	Oct. 31, 2014	Jul. 31, 2014
Payables and Accruals [Abstract]
Accounts Payable and Accruals – General and Administrative	$ 3,099,210	$ 3,208,069
Accounts Payable and Accruals – Research and Development	3,619,738	3,955,543
Accounts Payable and Accruals – Selling and Marketing	326,923	327,067
Accrued Make-whole Payments on Convertible Preferred Stock (see Note 8)	278,977	337,500
Executive Compensation and Directors’ Fees Payable	97,246	205,943
Total	$ 7,422,094	$ 8,034,122