Share-Based Compensation (Tables)

12 Months Ended

Sep. 30, 2012

Share-Based Compensation [Abstract]

Weighted-average estimated fair value of employee stock options granted

	2012	2011
Volatility	81.0% - 82.0%	89.0% - 93.0%
Risk-free interest rate	0.8% - 1.1%	1.0% - 1.8%
Forfeiture rate	10.0%	10.0%
Dividend yield	0.0%	0.0%
Expected life in years	5.4 - 6.4	3.4 - 6.5
Weighted average fair value of options granted during the year	$0.88	$1.60

Stock Option Activity

	Number of Shares			Weighted Average Exercise Price
Fiscal 2011:
Outstanding October 1, 2010		4,408,742		$	2.50
Granted		378,000		$	2.39
Forfeited/expired		(473,638	)	$	3.60
Exercised		(131,765	)	$	1.10
Outstanding September 30, 2011		4,181,339		$	2.40
Exercisable September 30, 2011		3,705,939		$	2.47
Fiscal 2012:
Outstanding October 1, 2011		4,181,339		$	2.40
Granted		1,237,500		$	1.33
Forfeited/expired		(1,955,500	)	$	3.67
Outstanding September 30, 2012		3,463,339		$	1.31
Exercisable September 30, 2012		2,575,857		$	1.25
Weighted average fair value of options granted during the year				$	0.88

Summary of stock options outstanding

Range of Exercise Prices	Number Outstanding		Weighted Average Remaining Contractual Life		Weighted Average Exercise Price		Number Exercisable		Weighted Average Exercise Price
$0.46-$1.00		746,482		1.19	$	0.48		746,169	$	0.48
$1.01-$1.50		1,916,157		7.10	$	1.29		1,170,032	$	1.28
$1.51-$2.00		408,700		0.89	$	1.85		376,106	$	1.87
$2.01-$2.50		276,500		8.21	$	2.26		186,103	$	2.25
$2.51-$3.13		115,500		3.43	$	2.65		97,447	$	2.64
$0.46-$3.13		3,463,339		5.06	$	1.31		2,575,857	$	1.25

Share-Based Compensation

Years Ended September 30,	2012		2011
Cost of revenue	$	21,662	$	25,928
Selling, general and administrative		603,989		335,796
Research and development		58,800		60,919
Total	$	684,451	$	422,643