Accounts Payable and Accrued Expenses

9 Months Ended

12 Months Ended

Apr. 30, 2012

Jul. 31, 2011

Payables and Accruals [Abstract]

Accounts Payable and Accrued Liabilities Disclosure [Text Block]

6. Accounts Payable and Accrued Expenses

Accounts payable and accrued expenses consist of the following:

	April 30, 2012		July 31, 2011
Accounts Payable & Accruals – General and Administrative	$	3,679,270	$	4,805,091
Accounts Payable & Accruals – Research and Development		2,088,101		2,151,333
Accounts Payable & Accruals – Selling and Marketing		298,802		434,265
Accrued Make Whole Payments on Convertible Preferred Stock (see Note 10)		540,000		347,490
Executive Compensation and Directors’ Fees Payable		370,705		—
Total	$	6,976,878	$	7,738,179

Note 8 - Accounts Payable and Accrued Expenses:

Accounts payable and accrued expenses consist of the following:

	July 31,
	2011		2010
Accounts Payable & Accruals – General and Administrative	$	4,805,091	$	3,480,340
Accounts Payable & Accruals – Research and Development		2,151,333		2,621,514
Accounts Payable & Accruals – Selling and Marketing		434,265		415,166
Accrued Make Whole Payments on Convertible Preferred Stock (see Note 12)		347,490		—
Executive Compensation		—		37,694
Total	$	7,738,179	$	6,554,714