COMMITMENTS - Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Jan. 31, 2023
Operating leases, options to extend	true
Operating leases, options to terminate	true
Operating lease, right-of-use assets	$ 4,600		$ 4,800
Operating lease expense	439	$ 750
Operating lease payments	$ 400	800
Weighted average lease term	56 months		58 months
Weighted average discount rate	3.70%		3.70%
Future minimum lease payment	$ 300	200
Short-term rentals expense	3,700	$ 2,400
Unsatisfied bonded performance obligations	500,000
GPS | Financial guarantee
Guarantor obligation maximum exposure	$ 3,600