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Income Per Share from Continuing Operations Attributable to REX Common Shareholders (Tables)
3 Months Ended
Apr. 30, 2015
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] The following table reconciles the computation of basic and diluted net income per share from continuing operations for the periods presented (in thousands, except per share amounts):

    Three Months Ended
April 30, 2015
    Three Months Ended
April 30, 2014
 
    Income     Shares     Per
Share
    Income     Shares     Per
Share
 
Basic income per share from continuing operations attributable to REX common shareholders   $ 3,927       7,900     $ 0.50     $ 21,739       8,117     $ 2.68  
Effect of stock options                               32          
Diluted income per share from continuing operations attributable to REX common shareholders   $ 3,927       7,900     $ 0.50     $ 21,739       8,149     $ 2.67