Accounts Payable and Accrued Expenses - Accounts payable and accrues expenses (Details) - USD ($)	Jan. 31, 2016	Jul. 31, 2015
Payables and Accruals [Abstract]
Accounts Payable and Accruals – General and Administrative	$ 3,679,408	$ 3,156,951
Accounts Payable and Accruals – Research and Development	4,078,817	3,861,902
Accounts Payable and Accruals – Selling and Marketing	325,949	326,250
Accrued Make-whole Payments on Convertible Preferred Stock (see Note 8)	202,500	315,900
Executive Compensation and Directors’ Fees Payable	250,542	357,330
Total	$ 8,537,216	$ 8,018,333