Accounts Payable and Accrued Expenses (Details) (USD $)	Oct. 31, 2012	Jul. 31, 2012
Accounts Payable & Accruals General and Administrative	$ 3,971,015	$ 3,556,160
Accounts Payable & Accruals Research and Development	2,822,961	2,691,192
Accounts Payable & Accruals Selling and Marketing	311,329	290,534
Accrued Make Whole Payments on Convertible Preferred Stock (see Note 9)	416,286	402,300
Executive Compensation and Directors' Fees Payable	256,141	75,466
Total	$ 7,777,732	$ 7,015,652