Summary of Significant Accounting Policies (Tables)

3 Months Ended

Jun. 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 months ended June 30, 2013 and 2012:

	Three Months Ended June 30,
	2013			2012
Costs and expenses:
Cost of revenue	$	74		$	76
Research and development costs	42			59
Selling, general and administrative	425			829
Total share-based compensation	541			964
Income tax benefit	(168		)	(320		)
Decrease in net income	$	373		$	644