Stock-based Compensation (Tables)

3 Months Ended

Dec. 31, 2015

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-Based Compensation Expenses

The Company’s stock-based compensation expenses were allocated to the following expense categories:

	Three Months Ended
	December 31,
(Dollars in thousands)	2015		2014
Product costs	$	6	$	7
Research and development		59		61
Selling, general and administrative		619		457
Total	$	684	$	525

Assumptions Used in Stock Option Plans

The assumptions used as inputs in the model were as follows:

	Three Months Ended
	December 31,
	2015			2014
Risk-free interest rates		2.0	%		1.4	%
Expected life (years)		4.6			4.5
Expected volatility		36.7	%		43.3	%
Dividend yield		0.0	%		0.0	%

Schedule of Fair Value at the Date of Grant

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

Performance Period	Minimum Shares		Target Shares		MaximumShares
Fiscal 2014 – 2016		7,861		39,303		78,606
Fiscal 2015 – 2017		8,440		42,199		84,398
Fiscal 2016 – 2018		11,852		59,258		118,516