Accounts Payable and Accrued Expenses (Tables)

9 Months Ended

12 Months Ended

Apr. 30, 2013

Jul. 31, 2012

Payables and Accruals [Abstract]

Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]

Accounts payable and accrued expenses consist of the following:

	April 30, 2013		July 31, 2012
	(Unaudited)		(Audited)
Accounts Payable and Accruals – General and Administrative	$	3,640,370	$	3,556,160
Accounts Payable and Accruals – Research and Development		3,263,481		2,691,192
Accounts Payable and Accruals – Selling and Marketing		323,953		290,534
Accrued Make-whole Payments on Convertible Preferred Stock (see Note 10)		143,370		402,300
Executive Compensation and Directors’ Fees Payable		55,745		75,466
Total	$	7,426,919	$	7,015,652

Accounts payable and accrued expenses consist of the following:

	July 31,
	2012		2011
Accounts Payable & Accruals – General and Administrative	$	3,556,160	$	4,805,091
Accounts Payable & Accruals – Research and Development		2,691,192		2,151,333
Accounts Payable & Accruals – Selling and Marketing		290,534		434,265
Accrued Make Whole Payments on Convertible Preferred Stock (see Note 11)		402,300		347,490
Executive Compensation and Directors’ Fees Payable		75,466		—
Total	$	7,015,652	$	7,738,179