Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details 2)

Stock-Based Compensation (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Stock-Based Compensation
Stock-based compensation expense	$ 481	$ 404	$ 1,177	$ 1,266
Cost of goods sold
Stock-Based Compensation
Stock-based compensation expense	23	27	76	104
Research and development
Stock-Based Compensation
Stock-based compensation expense	91	78	240	249
Selling, general and administrative
Stock-Based Compensation
Stock-based compensation expense	$ 367	$ 299	$ 861	$ 913

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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