SHARE-BASED COMPENSATION (Tables)

3 Months Ended

Jun. 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 2019 Plan, the 2019 Amended Plan, and the 2019 Second Amended 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
	June 30,
	2023		2022
Cost of product revenue	$	372	$	292
Cost of service revenue	2,539		1,745
Research and development	5,386		4,431
Sales and marketing	7,284		5,750
General and administrative	4,263		3,363
	$	19,844	$	15,581