Stock-Based Compensation (Tables)

12 Months Ended

Jul. 31, 2012

Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract]

Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]

The following is the average of the data used to calculate the fair value for the options granted in the fiscal years ended July 31, 2011 and 2010:

	Risk-Free			Expected		Expected			Expected
	Interest Rate			Life (Years)		Volatility			Dividends
July 31, 2011		0.013	%		5.0		101	%		-0-
July 31, 2010		0.14	%		6.5		104	%		-0-

Schedule of Stock Options Roll Forward [Table Text Block]

The following is a summary of the common stock options granted, forfeited or expired and exercised under the Plan:

				Weighted Average
				Exercise Price
	Options			per Share
Outstanding - August 1, 2009		5,067,138		$	0.44
Granted		2,705,000		$	0.63
Forfeited		(270,000	)	$	0.92
Expired		(36,500	)	$	0.63
Exercised		—		$	0.00
Outstanding - July 31, 2010		7,465,638		$	0.49
Granted		3,300,000		$	0.28
Forfeited or expired		(2,848,704	)	$	0.41
Exercised		(576,752	)	$	0.001
Outstanding - July 31, 2011		7,340,182		$	0.46
Granted		5,851,696		$	0.001
Forfeited or expired		(912,250	)	$	0.65
Exercised		(1,299,994	)	$	0.001
Outstanding - July 31, 2012		10,979,634		$	0.26
Exercisable - July 31, 2012		10,807,134		$	0.25

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

The following is a summary of the non-vested common stock options granted, vested and forfeited under the Plan:

				Weighted Average
				Grant Date
	Options			Fair Value
Outstanding - August 1, 2011		845,836		$	0.50
Granted		5,851,696		$	0.001
Vested		(6,322,532	)	$	0.04
Forfeited		(202,500	)	$	0.46
Outstanding - July 31, 2012		172,500		$	0.46

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

The following table summarizes information on stock options outstanding at July 31, 2012:

	Options Outstanding
					Weighted
	Number		Weighted		Average
	Outstanding		Average		Remaining		Aggregate
Range of	at		Exercise		Life		Intrinsic
Exercise Price	July 31, 2012		Price		(Years)		Value
$0.001 - $0.18		5,093,856	$	0.001		4.61
$0.19 - $0.56		3,250,000	$	0.28		3.60
$0.57 - $0.63		200,000	$	0.56		2.24
$0.64 - $0.65		1,658,500	$	0.63		4.98
$0.66 - $0.96		777,278	$	0.94		2.24
		10,979,634	$	0.26		4.16	$	468,635

	Options Exercisable
					Weighted
	Number		Weighted		Average
	Outstanding		Average		Remaining		Aggregate
Range of	at		Exercise		Life		Intrinsic
Exercise Price	July 31, 2012		Price		(Years)		Value
$0.001 - $0.18		5,093,856	$	0.001		4.61
$0.19 - $0.56		3,250,000	$	0.28		3.60
$0.57 - $0.63		200,000	$	0.56		2.24
$0.64 - $0.65		1,486,000	$	0.63		4.98
$0.66 - $0.96		777,278	$	0.94		2.24
		10,807,134	$	0.25		4.19	$	468,635

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [Table Text Block]

For the Year Ended July 31,
	2012		2011		2010
Weighted Average Grant Date Fair Value of Options Granted	$	0.09	$	0.21	$	0.53
Aggregate Intrinsic Value of Options Exercised	$	119,214	$	166,681	$	—
Cash Received for Exercise of Stock Options	$	1,299	$	577	$	—

The intrinsic value is calculated as the difference between the market value as of July 31, 2012, 2011 and 2010 and the exercise price of the shares on the respective dates.