LEASES (Details)	12 Months Ended
	Jan. 31, 2021 USD ($)
LEASES (Details) [Line Items]
Operating Leases, Income Statement, Sublease Revenue	$ 576,000
Operating Lease, Weighted Average Remaining Lease Term	6 years 8 months 12 days
Operating Leases of Lessee, Contingent Rentals, Description of Variable Rate Basis	incremental borrowing rate which is LIBOR plus 1.5%
Operating Lease, Weighted Average Discount Rate, Percent	2.25%
Operating Leases, Future Minimum Payments Due	$ 28,000,000
Lessee, Operating Lease, Term of Contract	10 years
London Interbank Offered Rate (LIBOR) [Member]
LEASES (Details) [Line Items]
Operating Leases of Lessee, Contingent Rentals, Basis Spread on Variable Rate	1.50%