Summary of Significant Accounting Policies (Tables)

6 Months Ended

Sep. 30, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Stock-based compensation expense

The following table shows total share-based compensation expense included in the consolidated statements of comprehensive income for the three and six months ended September 30, 2013 and 2012:

	Three Months Ended September 30,						Six Months Ended September 30,
	2013			2012			2013			2012
Costs and expenses:
Cost of revenue	$	89		$	73		$	163		$	149
Research and development costs	89			74			131			133
Selling, general and administrative	406			272			831			1,101
Total share-based compensation	584			419			1,125			1,383
Income tax benefit	(184		)	(127		)	(352		)	(447		)
Decrease in net income	$	400		$	292		$	773		$	936