Accounts Payable and Accrued Expenses (Details) (USD $)	Jul. 31, 2014	Jul. 31, 2013
Payables and Accruals [Abstract]
Accounts Payable & Accruals -General and Administrative	$ 3,208,069	$ 3,447,618
Accounts Payable & Accruals - Research and Development	3,955,543	3,557,184
Accounts Payable & Accruals - Selling and Marketing	327,067	328,629
Accrued Make Whole Payments on Convertible Preferred Stock (see Note 9)	337,500	251,100
Executive Compensation and Directors' Fees Payable	205,943	76,703
Total	$ 8,034,122	$ 7,661,234