Stock-based Compensation (Tables)

3 Months Ended

Dec. 31, 2012

Stock Based Compensation Expenses

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

	Three months  ended December 31,
	2012		2011
Product costs	$	3	$	15
Research and development		23		221
Selling, general and administrative		366		657
Total	$	392	$	893

Assumptions Used in Stock Option Plans

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

	Three months  ended December 31,
	2012			2011
Risk-free interest rates		0.6	%		0.8	%
Expected life (years)		4.8			4.8
Expected volatility		49.2	%		49.6	%
Dividend yield		0.0	%		0.0	%