SHARE-BASED COMPENSATION (Tables)

6 Months Ended

Sep. 30, 2012

Components Of Share-Based Compensation Expense

The following is a summary of share-based compensation expense including restricted stock units and employee stock purchases made under our employee stock purchase plan (ESPP) based on estimated fair values within the applicable cost and expense lines identified below (in thousands):

	Three Months Ended				Six Months Ended
	September 30,				September 30,
	2012		2011		2012		2011
Cost of product revenue	$	66	$	41	$	115	$	88
Cost of service revenue		87		47		153		112
Research and development		742		525		1,386		1,102
Sales and marketing		808		607		1,526		1,377
General and administrative		829		568		1,599		1,268
	$	2,532	$	1,788	$	4,779	$	3,947