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Stock-Based Compensation (Tables)

12 Months Ended

Sep. 30, 2013

Summarize Information about Stock Options

	Number of Options Outstanding				Weighted- Average Exercise Price Per Share					Weighted- Average Remaining Contractual Term				Aggregate Intrinsic Value
Balance At September 30, 2011		729,096			$		9.03
Granted		1,229,500					4.40
Cancelled		(42,919	)				11.77
Exercised		(4,883	)				5.20
Balance At September 30, 2012		1,910,794					6.10
Granted		1,509,166					2.03
Cancelled		-					-
Exercised		(675	)				3.93
Balance At September 30, 2013		3,419,285			$		4.68				8.3 years			$		5,811,926
Exercisable At September 30, 2013		1,306,306			$		6.55				6.7 years			$		1,127,819

Assumptions Used to Value Stock Options

The assumptions used to value stock options are as follows:

	Year ended September 30,
	2013				2012
Dividend yield		—				—
Risk-free interest rate	0.7% to 2.3%				0.9% to 1.7%
Volatility		69	%		90% - 100%
Expected life (in years)	5.5 to 6.25				5.5 to 6.25
Weighted average grant date fair value per share of options granted	$	1.88			$	3.32

X

- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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X

- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
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