FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Schedule of Fair Value Measurements

cash, cash equivalents, restricted cash, and available-for-sale investments:

June 30, 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	$	39,480	$	—	$	—	$	39,480	$	39,480	$	—	$	—	$	—
Level 1:
Money market funds	67,108		—		—		67,108		67,108		—		—		—
Subtotal	106,588		—		—		106,588		106,588		—		—		—
Level 2:
Certificate of deposit	8,641		—		—		8,641		—		8,641		—		—
Municipal bonds	700		—		—		700		700		—		—		—
Commercial paper	15,120		2		—		15,122		2,000		—		13,122		—
Corporate debt	30,796		30		(5)		30,821		—		—		18,109		12,712
Subtotal	55,257		32		(5)		55,284		2,700		8,641		31,231		12,712
Total assets	$	161,845	$	32	$	(5)	$	161,872	$	109,288	$	8,641	$	31,231	$	12,712

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	$	—