STOCK-BASED COMPENSATION - Summary of Change in Number of Non-Vested Options to Purchase Shares of Common Stock (Details) - $ / shares shares in Thousands	6 Months Ended
	Jul. 31, 2023	Jul. 31, 2022
STOCK-BASED COMPENSATION
Shares, Non-vested, Beginning balance	194
Shares, Granted	10
Shares, Vested	(75)
Shares, Forfeitures	(1)
Shares, Non-vested, Ending balance	128
Shares, Non-vested	128	239
Weighted Average Grant Date Fair Value Per Share, Non-vested, Beginning balance	$ 7.27
Weighted Average Grant Date Fair Value Per Share, Granted	8.12
Weighted Average Grant Date Fair Value Per Share, Vested	6.62
Weighted Average Grant Date Fair Value Per Share, Forfeitures	5.68
Weighted Average Grant Date Fair Value Per Share, Non-vested, Ending balance	7.72
Weighted Average Grant Date Fair Value Per Share, Non-vested	$ 7.72	$ 7.45