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Net Income Per Share Attributable to REX Common Shareholders (Tables)
3 Months Ended
Apr. 30, 2016
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 for the periods presented (in thousands, except per share amounts):

    Three Months Ended     Three Months Ended  
    April 30, 2016     April 30, 2015  
    Income     Shares     Per
Share
    Income     Shares     Per
Share
 
Basic net income per share attributable to REX common shareholders   $ 2,838       6,573     $ 0.43     $ 3,927       7,900     $ 0.50  
                                                 
Effect of restricted stock           21                              
                                                 
Diluted net income per share attributable to REX common shareholders   $ 2,838       6,594     $ 0.43     $ 3,927       7,900     $ 0.50