CASH, CASH EQUIVALENTS AND INVESTMENTS (Tables)

6 Months Ended

Jul. 31, 2023

CASH, CASH EQUIVALENTS AND INVESTMENTS

Investments

	July 31,		January 31,
	2023		2023
Short-term investments	$	81,624	$	151,511
Available-for-sale securities		59,992		—
Total investments	$	141,616	$	151,511

Schedule of available-for-sale securities

	July 31, 2023
			Allowance for		Gross		Gross		Estimated
	Amortized		Credit		Unrealized		Unrealized		Fair
	Cost		Losses		Gains		Losses		Value
U.S. Treasury notes:
Due in one to two years	$	25,162	$	—	$	—	$	276	$	24,886
Due in two to three years		35,550		—		—		444		35,106
Totals	$	60,712	$	—	$	—	$	720	$	59,992