PROPERTY, PLANT AND EQUIPMENT, NET - Depreciation Expense and Cost of Maintenance and Repairs (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2022
PROPERTY, PLANT AND EQUIPMENT, NET.
Depreciation	$ 2,013	$ 2,983	$ 3,367
Costs of maintenance and repairs	$ 1,600	$ 2,400	$ 2,100