STOCK-BASED COMPENSATION - Summary of Change in Number of Non-Vested Options to Purchase Shares of Common Stock (Details) - $ / shares shares in Thousands	9 Months Ended
	Oct. 31, 2022	Oct. 31, 2021
STOCK-BASED COMPENSATION
Shares, Non-vested, Beginning balance	295
Shares, Granted	38
Shares, Vested	(116)
Shares, Non-vested, Ending balance	217
Shares, Non-vested	217	328
Weighted Average Fair Value, Non-vested, Beginning balance	$ 7.80
Weighted Average Fair Value, Granted	6.68
Weighted Average Fair Value, Vested	8.32
Weighted Average Fair Value, Non-vested, Ending balance	7.33
Weighted Average Fair Value, Non-vested	$ 7.33	$ 8.13