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2. Earnings Per Share (Tables)
3 Months Ended
Aug. 31, 2014
Computation of Basic and Diluted Shares
    2014     2013  
Numerator:            
Net income available to common shareholders   $ 214,498     $ 1,448,652  
                 
Denominator:                
Weighted-average shares outstanding:                
    Basic     26,461,201       26,111,201  
Incremental shares from assumed   conversion of options     1,624,528       1,453,846  
Diluted shares     28,085,729       27,565,047  
Earnings per share:                
Basic   $ 0.01     $ 0.06  
Diluted   $ 0.01     $ 0.05