Stock-based Compensation (Tables)

9 Months Ended

Jun. 30, 2013

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 (in thousands):

	Three months ended June 30,				Nine months ended June 30,
	2013		2012		2013		2012
Product costs	$	7	$	5	$	17	$	31
Research and development		54		71		141		453
Selling, general and administrative		684		580		1,825		1,705
Total	$	745	$	656	$	1,983	$	2,189

Assumptions Used in Stock Option Plans

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

	Three months ended June 30,					Nine months ended June 30,
	2013		2012			2013			2012
Risk-free interest rates		N/A		0.7	%		0.6	%		0.8	%
Expected life (years)		N/A		4.8			4.8			4.8
Expected volatility		N/A		48.6	%		49.2	%		49.6	%
Dividend yield		N/A		0.0	%		0.0	%		0.0	%