Stock-Based Compensation Plans (Tables)

12 Months Ended

Sep. 30, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-Based Compensation Expenses

The Company’s stock-based compensation expenses for the years ended September 30 were allocated to the following expense categories (in thousands):

	2013		2012		2011
Product costs	$	22	$	35	$	79
Research and development		180		511		1,156
Selling, general and administrative		2,350		2,125		2,415
Total continuing operations		2,552		2,671		3,650
Discontinued operations		—		62		602
Total stock-based compensation expense	$	2,552	$	2,733	$	4,252

Assumptions Used in Stock Option Plans

The assumptions used as inputs in the model for the years ended September 30 were as follows:

	2013			2012			2011
Risk-free interest rates		0.60	%		0.82	%		1.45	%
Expected life		4.8 years			4.8 years			4.8 years
Expected volatility		49	%		50	%		45	%
Dividend yield		0	%		0	%		0	%

Schedule of Stock Option Activity

The following table summarizes all stock options activity and stock options outstanding and exercisable under the stock option plans during fiscal 2013, 2012 and 2011:

	Number of Shares			Weighted Average Exercise Price
Outstanding at September 30, 2010		1,492,321		$	31.22
Granted		551,773			9.96
Exercised		—			—
Forfeited		(528,906	)		25.15
Outstanding at September 30, 2011		1,515,188		$	25.59
Granted		299,832			12.46
Exercised		(11,379	)		10.03
Forfeited		(478,203	)		29.76
Outstanding at September 30, 2012		1,325,438		$	21.25
Granted		178,924			20.85
Exercised		(10,273	)		14.40
Forfeited		(125,105	)		33.47
Outstanding at September 30, 2013		1,368,984		$	20.13
Exercisable at September 30, 2013		771,640		$	24.47

Schedule of Restricted Stock Awards Activity

The following table summarizes all restricted stock awards activity during fiscal 2013, 2012 and 2011:

	Number of Shares			Weighted Average Grant Price
Balance at September 30, 2010		41,072		$	22.33
Granted		66,533			10.01
Vested		(23,978	)		19.38
Forfeited		(11,000	)		20.79
Balance at September 30, 2011		72,627		$	12.25
Vested		(67,627	)		11.52
Forfeited		(1,000	)		22.35
Balance at September 30, 2012		4,000		$	22.11
Granted		5,234			23.88
Vested		(4,000	)		22.11
Balance at September 30, 2013		5,234		$	23.88

Schedule of Fair Value at the Date of Grant

The aggregate number of shares that could be awarded to key employees if the minimum, target and maximum performance goals are met, based upon the fair value at the date of grant is as follows:

Performance Period	Minimum Shares		Target Shares		Maximum Shares
Fiscal 2011 — 2013		13,707		68,533		122,053
Fiscal 2012 — 2014		12,499		62,497		124,994
Fiscal 2013 — 2015		8,551		42,753		85,506