Equity (Tables)

12 Months Ended

Sep. 30, 2013

Equity [Abstract]

Schedule of Stock Options Activity

The following table summarizes stock option activity under the Equity Plans for our fiscal year ended September 30, 2013:

	Number of Shares		Weighted Average Exercise Price	Weighted Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value (*) (in thousands)
Outstanding as of September 30, 2012	2,032,215		$17.76
Granted	84,000		$4.46
Exercised	(78,690	)	$4.93		$	94
Forfeited	(67,192	)	$7.04
Expired	(224,385	)	$20.34
Outstanding as of September 30, 2013	1,745,948		$17.78	4.34
Exercisable as of September 30, 2013	1,535,077		$19.56	3.81	$	43
Vested and expected to vest as of September 30, 2013	1,711,395		$18.04	4.26	$	110

(*) Intrinsic value for stock options represents the “in-the-money” portion or the positive variance between a stock option's exercise price and the underlying stock price. For the fiscal years ended September 30, 2012 and 2011, the intrinsic value of options exercised was $12,000 and $218,000, respectively.

Schedule of Valuation Assumptions

The fair value of each stock option grant was estimated on the date of grant using the Black-Scholes option valuation model, adhering to the straight-line attribution approach using the following weighted-average assumptions, of which the expected term and stock price volatility rate are highly subjective:

	For the Fiscal Years Ended September 30,
	2013			2012			2011
Black-Scholes weighted average assumptions:
Expected dividend rate	—		%	—		%	—		%
Expected stock price volatility rate	96.7		%	101.8		%	99.4		%
Risk-free interest rate	1.2		%	0.8		%	1.4		%
Expected term (in years)	6.0			5.4			4.9
Weighted average grant date fair value per share of stock options granted:	$	3.45		$	3.54		$	4.44

Schedule of Restricted Stock Activity

The following table summarizes the activity related to RSAs and RSUs:

Restricted Stock Activity	Restricted Stock Awards			Restricted Stock Units
	Number of Shares		Weighted Average Grant Date Fair Value	Number of Shares		Weighted Average Grant Date Fair Value
Non-vested as of September 30, 2012	216,703		$5.83	700,043		$4.44
Granted	—		—	530,700		$4.63
Vested	(106,797	)	$5.83	(256,390	)	$4.59
Forfeited	(10,345	)	$5.68	(119,425	)	$4.48
Non-vested as of September 30, 2013	99,561		$5.84	854,928		$4.51

Schedule of Stock-based Compensation Expense - By Award Type

The effect of recording stock-based compensation expense was as follows:

Stock-based Compensation Expense - by award type	For the Fiscal Years Ended September 30,
(in thousands)	2013		2012		2011
Employee stock options	$	495	$	2,563	$	5,147
Restricted stock awards and units	2,006		3,211		557
Employee stock purchase plan	501		666		600
401(k) match in common stock	1,041		1,034		935
Outside director fees in common stock	166		282		189
Total stock-based compensation expense	$	4,209	$	7,756	$	7,428

Schedule Stock-based Compensation Expense - By Expense Type

Stock-based Compensation Expense - by expense type	For the Fiscal Years Ended September 30,
(in thousands)	2013		2012		2011
Cost of revenue	$	1,143	$	1,566	$	1,412
Selling, general, and administrative	1,754		3,889		3,927
Research and development	1,312		2,301		2,089
Total stock-based compensation expense	$	4,209	$	7,756	$	7,428

Schedule of Earnings Per Share, Basic and Diluted

Income (Loss) Per Share.

The following table sets forth the computation of basic and diluted net income (loss) per share:

Basic and Diluted Net Income (Loss) Per Share	For the Fiscal Years Ended September 30,
(in thousands, except per share)	2013			2012			2011
Numerator - Net income (loss)	$	4,988		$	(39,171	)	$	(34,219	)
Less: Undistributed earnings allocated to participating securities	(26		)	—			—
Undistributed earnings allocated to common shareholders for basic net income (loss) per share	$	4,962		$	(39,171	)	$	(34,219	)
Undistributed earnings allocated to common shareholders for diluted net income (loss) per share	$	4,962		$	(39,171	)	$	(34,219	)
Denominator:
Denominator for basic net income (loss) per share - weighted average shares outstanding	26,531			23,559			22,228
Dilutive options outstanding, unvested stock units and ESPP	281			—			—
Denominator for diluted net income (loss) per share - adjusted weighted average shares outstanding	26,812			23,559			22,228
Basic net income (loss) per share	$	0.19		$	(1.66	)	$	(1.54	)
Diluted net income (loss) per share	$	0.19		$	(1.66	)	$	(1.54	)
Weighted average antidilutive options, unvested restricted stock units and awards, warrants and ESPP shares excluded from the computation	2,391			3,999			3,333
Average market price of common stock	$	4.64		$	4.44		$	7.64

Schedule of Common Stock Reserved for Future Issuances

As of September 30, 2013, we had common stock reserved for the following future issuances:

Future Issuances	Number of Common Stock Shares Available for Future Issuances
Exercise of outstanding stock options	1,745,948
Unvested restricted stock units	854,928
Purchases under the employee stock purchase plan	433,958
Issuance of stock-based awards under the Equity Plans	608,395
Exercise of outstanding warrants	400,001
Purchases under the officer and director share purchase plan	90,323
Total reserved	4,133,553