CASH, CASH EQUIVALENTS AND INVESTMENTS - Available-for-Sale Securities (Details) $ in Thousands	12 Months Ended
	Jan. 31, 2024 USD ($)
Cash and Cash Equivalents
Interest receivable	$ 1,300
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Current, Statement of Financial Position [Extensible Enumeration]	Investments
Net unrealized holding losses for the Company's AFS securities	$ 200
Proceeds from sale of debt securities, available-for-sale	0
Amounts of gains or losses reclassified out of other comprehensive income	0
Available-for-sale securities
Amortized Cost	105,623
Gross Unrealized Gains	568
Gross Unrealized Losses	307
Fair Value	105,884
US Treasury notes
Available-for-sale securities
Amortized cost, Due in one to two years	50,634
Amortized Cost, Due in two to three years	45,583
Gross Unrealized Gains, Due in one to two years	305
Gross Unrealized Gains, Due in two to three years	263
Gross Unrealized Losses, Due in one to two years	102
Gross Unrealized Losses, Due in two to three years	128
Fair Value, Due in one to two years	50,837
Fair Value, Due in two to three years	45,718
U.S. corporate debt security
Available-for-sale securities
Amortized Cost, Due in two to three years	9,406
Gross Unrealized Losses, Due in two to three years	77
Fair Value, Due in two to three years	$ 9,329
Minimum
Cash and Cash Equivalents
Available-for-sale securities term	2 years
Maximum
Cash and Cash Equivalents
Available-for-sale securities term	3 years