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2. Earnings Per Share (Tables)
6 Months Ended
Nov. 30, 2013
Computation of Basic and Diluted Shares
    2013     2012  
Six-Month Periods ended November 30, 2013 and 2012:            
Numerator -            
Net income available to common shareholders   $ 1,298,026     $ 834,608  
                 
Denominator -                
Weighted-average shares outstanding                
Basic     26,111,201       26,111,201  
Incremental shares from assumed conversion of options     1,447,399       1,130,769  
Diluted Shares     27,558,600       27,241,970  
                 
Three-Month Periods ended November 30, 2013 and 2012:                
Numerator -                
Net income (loss) available to common shareholders   $ (150,626 )   $ 2,603  
                 
Denominator -                
Weighted-average shares outstanding                
Basic     26,111,201       26,111,201  
Incremental shares from assumed conversion of options     -       1,336,364  
Diluted Shares     26,111,201       27,447,565