Stock-Based Compensation Plans (Tables)

12 Months Ended

Sep. 30, 2014

Disclosure of Compensation Related Costs, Share-based 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):

	2014		2013		2012
Product costs	$	16	$	22	$	35
Research and development		175		180		511
Selling, general and administrative		3,146		2,350		2,125
Total continuing operations		3,337		2,552		2,671
Discontinued operations		—		—		62
Total stock-based compensation expense	$	3,337	$	2,552	$	2,733

Assumptions Used in Stock Option Plans

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

	2014			2013			2012
Risk-free interest rates		1.19	%		0.60	%		0.82	%
Expected life		4.6 years			4.8 years			4.8 years
Expected volatility		45	%		49	%		50	%
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 2014, 2013 and 2012:

	Number of Shares			Weighted Average Exercise Price
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
Granted		138,837			22.71
Exercised		(190,434	)		14.42
Forfeited		(106,768	)		31.26
Outstanding at September 30, 2014		1,210,619		$	20.35
Exercisable at September 30, 2014		845,089		$	21.48

Schedule of Restricted Stock Awards Activity

The following table summarizes all restricted stock awards activity during fiscal 2014, 2013 and 2012:

	Number of Shares			Weighted Average Grant Price
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
Vested		5,234			23.88
Forfeited		(4,000	)		22.11
Balance at September 30, 2013		5,234		$	23.88
Granted		22,155			22.67
Vested		(7,991	)		23.98
Forfeited		(774	)		22.58
Balance at September 30, 2014		18,624		$	22.45

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 2012 — 2014		12,499		62,497		98,093
Fiscal 2013 — 2015		8,551		42,753		85,506
Fiscal 2014 — 2016		7,861		39,303		78,606