Accounts Payable and Accrued Expenses - Accounts payable and accrued expenses (Tables)

12 Months Ended

Jul. 31, 2015

Payables and Accruals [Abstract]

Accounts payable and accrued expenses

	July 31,
	2015		2014
Accounts Payable and Accruals - General and Administrative	$	3,156,951	$	3,208,069
Accounts Payable and Accruals - Research and Development		3,861,902		3,955,543
Accounts Payable and Accruals - Selling and Marketing		326,250		327,067
Accrued Make-whole Payments on Convertible Preferred Stock (See Note 8)		315,900		337,500
Executive Compensation and Directors’ Fees Payable		357,330		205,943
Total	$	8,018,333	$	8,034,122