FAIR VALUE MEASUREMENTS (Tables)

12 Months Ended

Mar. 31, 2021

Fair Value Disclosures [Abstract]

Schedule of Fair Value Measurements

Cash, cash equivalents and available-for-sale investments were as follows:

As of March 31, 2021	Amortized Costs		Gross Unrealized Gain		Gross Unrealized Loss		Estimated Fair Value		Cash and Cash Equivalents		Restricted Cash (Current & Non-current)		Short-Term Investments		Long-Term Investments
Cash	$	39,070	$	—	$	—	$	39,070	$	39,070	$	—	$	—	$	—
Level 1:
Money market funds	67,712		—		—		67,712		67,712		—		—		—
Treasury securities	6,177		17		—		6,194		—		—		6,194		—
Subtotal	112,959		17		—		112,976		106,782		—		6,194		—
Level 2:
Certificate of deposit	8,641		—		—		8,641		—		8,641		—		—
Commercial paper	17,656		42		—		17,698		700		—		16,998		—
Corporate debt	22,193		1		—		22,194		5,049		—		17,145		—
Subtotal	48,490		43		—		48,533		5,749		8,641		34,143		—
Total assets	$	161,449	$	60	$	—	$	161,509	$	112,531	$	8,641	$	40,337	$	—

As of March 31, 2020	Amortized Costs		Gross Unrealized Gain		Gross Unrealized Loss		Estimated Fair Value		Cash and Cash Equivalents		Restricted Cash (Current & Non-current)		Short-Term Investments		Long-Term Investments
Cash	$	21,002	$	—	$	—	$	21,002	$	21,002	$	10,376	$	—	$	—
Level 1:
Money market funds	110,796		—		—		110,796		110,796		—		—		—
Treasury securities	6,192		116		—		6,308		—		—		—		6,308
Subtotal	137,990		116		—		138,106		131,798		10,376		—		6,308
Level 2:
Certificate of deposit	8,641		—		—		8,641		—		8,641		—		—
Commercial paper	14,979		6		—		14,985		5,596		—		9,389		—
Corporate debt	34,153		32		(341)		33,844		—		—		24,069		9,775
Subtotal	57,773		38		(341)		57,470		5,596		8,641		33,458		9,775
Total assets	$	195,763	$	154	$	(341)	$	195,576	$	137,394	$	19,017	$	33,458	$	16,083