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LEASES (Tables)
 9 Months Ended
Oct. 31, 2018
Leases [Abstract]  
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] At October 31, 2018, the Company has lease agreements, as lessee, for rail cars and a natural gas pipeline. All of the leases are accounted for as operating leases. The following table is a summary of future minimum rentals on such leases (amounts in thousands):

Years Ended January 31,  Minimum
Rentals		 
      
Remainder of 2019  $1,982 
2020   7,220 
2021   5,865 
2022   5,182 
2023   3,600 
Thereafter   7,123 
Total  $30,972