CASH, CASH EQUIVALENTS, MARKETABLE SECURITIES AND INVESTMENTS- Summary of Marketable Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Mar. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 46,694	$ 41,120
Unrealized Gains (Losses)	(104)	24
Fair Value	46,590	41,144
Short-term Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	42,687	32,205
Unrealized Gains (Losses)	(56)	(1)
Fair Value	42,631	32,204
Long-term Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	4,007	8,915
Unrealized Gains (Losses)	(48)	25
Fair Value	3,959	8,940
U.S. government and municipal obligations
Debt Securities, Available-for-sale [Line Items]
Fair Value	20,230	17,735
U.S. government and municipal obligations | Short-term Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	16,327	8,796
Unrealized Gains (Losses)	(56)	(1)
Fair Value	16,271	8,795
U.S. government and municipal obligations | Long-term Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	4,007	8,915
Unrealized Gains (Losses)	(48)	25
Fair Value	3,959	8,940
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Fair Value	18,989	19,136
Commercial paper | Short-term Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	18,989	19,136
Unrealized Gains (Losses)	0	0
Fair Value	18,989	19,136
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Fair Value		310
Corporate bonds | Short-term Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		310
Unrealized Gains (Losses)		0
Fair Value		310
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Fair Value	7,371	3,963
Certificates of deposit | Short-term Marketable Securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	7,371	3,963
Unrealized Gains (Losses)	0	0
Fair Value	$ 7,371	$ 3,963