Employee Benefit Plans (Tables)

12 Months Ended

Mar. 31, 2020

Employee Benefit Plans

Summary of activity with respect to stock options

		Weighted		Weighted
		Average		Average
		Exercise		Remaining	Aggregate
		Price Per		Contractual	Intrinsic
	Options	Share		Life	Value
	(Inthousands)			(Years)	(Inthousands)
Options outstanding at March 31, 2019	5,035	$	3.70	7.6	$	4,430
Granted	1,206		5.06
Exercised	(119)		2.13
Forfeited	(188)		4.94
Expired	—		—
Options outstanding at March 31, 2020	5,934	$	3.99	7.2	$	2,095

Summary of activity with respect to RSUs

		Weighted		Weighted
		Average		Average		Aggregate
		Price Per		Remaining		Intrinsic
	# of Shares	Share		Life		Value
	(In thousands)			(Years)		(In thousands)
RSUs outstanding at March 31, 2019	112	$	4.62	1.1	$	19
Granted	374		5.12
Vested	(78)		4.17
Forfeited	(4)		5.52
RSUs outstanding at March 31, 2020	404	$	5.16	2.0	$	1,295

Schedule of stock-based compensation expense

	Year Ended March 31,
	2020		2019		2018
	(In thousands)
Cost of revenues	$	175	$	146	$	71
Selling, general and administrative expense		2,364		1,804		1,558
Research and development expense		246		206		152
Total stock-based compensation	$	2,785	$	2,156	$	1,781

Schedule of weighted-average assumptions used in estimating the grant date fair value of stock options granted

	Year Ended March 31,
	2020		2019		2018
Expected life—years	6.8		5.9		6.5
Risk-free interest rate	2.2	%	2.7	%	2.7	%
Expected volatility of common stock	47	%	43	%	43	%
Dividend yield	0	%	0	%	0	%

Summary of certain fair value and intrinsic value information pertaining to stock options

	Year Ended March 31,
	2020		2019		2018
	(In thousands, except per share amounts)
Weighted average grant date fair value per share of options granted	$	2.52	$	1.89	$	2.59
Intrinsic value of options exercised	$	378	$	114	$	2,469