LEASES (Details)	3 Months Ended
	Apr. 30, 2019
Disclosure Text Block [Abstract]
Lease, Practical Expedients, Description	ASC 842 provides for three practical expedients,which the Company elected as a package. Pursuant to this package, the Company did not reassess: i) whether any expired or existingcontracts are or contain leases; ii) the lease classification for any expired or existing leases that were previously classifiedas operating leases; or iii) initial direct costs for any existing leases.The Company elected the practical expedient,available pursuant to ASC 842, for lessees to include both lease and non-lease components as a single component and account forthem as a lease. In general, certain maintenance costs are the responsibility of the Company related to its railcar leases. Thismaintenance cost is a non-lease component the Company elected to combine with rental payments and account for the total cost asoperating lease expense.
Operating Lease, Weighted Average Remaining Lease Term	4 years
Operating Lease, Weighted Average Discount Rate, Percent	5.46%