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INVESTMENTS (Tables)
 6 Months Ended
Jul. 31, 2018
Investments Schedule [Abstract]  
Equity Method Investments [Table Text Block] The following table summarizes the Company’s equity method investment at July 31, 2018 and January 31, 2018 (dollars in thousands):

Entity  Ownership Percentage   Carrying Amount
July 31, 2018		   Carrying Amount
January 31, 2018		 
                
Big River   10.3%  $35,117   $34,549 
Schedule of Financial Information for Equity Method Investments [Table Text Block] Summarized financial information for the Company’s equity method investee is presented in the following table for the periods presented (amounts in thousands):

   Three Months Ended
 July 31,		   Six Months Ended
July 31,		 
   2018   2017   2018   2017 
                 
Net sales and revenue  $212,092   $212,070   $404,035   $404,569 
Gross profit  $10,648   $11,582   $24,339   $19,764 
Income from continuing operations  $8,468   $1,411   $15,232   $8,618 
Net income  $8,468   $1,411   $15,232   $8,618 
Schedule of Defined Benefit Plans Disclosures [Table Text Block] The following table summarizes the Company’s held-to-maturity securities at July 31, 2018 (dollars in thousands):

   Amortized
Cost		   Gross Unrealized
Losses		   Estimated
Fair Value		 
                
United States Treasury Bills  $111,969   $36   $111,933