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

12 Months Ended

Jul. 31, 2016

Payables and Accruals [Abstract]

Accounts payable and accrued expenses

	July 31,
	2016		2015
Accounts Payable and Accruals - General and Administrative	$	3,750,638	$	3,156,951
Accounts Payable and Accruals - Research and Development		4,395,061		3,861,902
Accounts Payable and Accruals - Selling and Marketing		326,229		326,250
Accrued Make-whole Payments on Convertible Preferred Stock (See Note 8)		167,400		315,900
Executive Compensation and Directors’ Fees Payable		311,542		357,330
Total	$	8,950,870	$	8,018,333