SHARE-BASED COMPENSATION (Tables)

6 Months Ended

Sep. 30, 2023

Share-Based Payment Arrangement [Abstract]

Schedule of Share-Based Compensation Expense

The following is a summary of share-based compensation expense including restricted stock units and performance-based restricted stock units granted pursuant to the Company's Amended 2007 Plan, the Amended 2019 Plan, and employee stock purchases made under the Company's 2011 Amended and Restated 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,
	2023		2022		2023		2022
Cost of product revenue	$	349	$	315	$	721	$	607
Cost of service revenue	2,289		2,080		4,828		3,825
Research and development	4,988		4,580		10,374		9,011
Sales and marketing	6,675		6,043		13,959		11,793
General and administrative	4,144		3,483		8,407		6,846
	$	18,445	$	16,501	$	38,289	$	32,082