STOCK-BASED COMPENSATION - Summary of Change in Number of Non-Vested Options to Purchase Shares of Common Stock (Details) - $ / shares shares in Thousands	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
STOCK-BASED COMPENSATION
Shares, Non-vested, Beginning balance	467	448	375
Shares, Granted	67	242	238
Shares, Vested	(231)	(207)	(134)
Shares, Forfeitures	(8)	(16)	(31)
Shares, Non-vested, Ending balance	295	467	448
Shares, Non-vested	295	467	448
Weighted Average Fair Value, Non-vested, Beginning balance	$ 8.01	$ 9.74	$ 10.05
Weighted Average Fair Value, Granted	8.54	6.53	9.60
Weighted Average Fair Value, Vested	8.46	9.98	10.25
Weighted Average Fair Value, Forfeitures	7.05	8.52	10.28
Weighted Average Fair Value, Non-vested, Ending balance	7.80	8.01	9.74
Weighted Average Fair Value, Non-vested	$ 7.80	$ 8.01	$ 9.74