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Stock Options Outstanding And Exercisable (Tables)
6 Months Ended
Sep. 30, 2012
Stock Options Outstanding And Exercisable Tables  
Summary Of Outstanding And Exercisable Stock Options

The following table summarizes the stock options outstanding and exercisable at September 30, 2012:

 

 

    Options Outstanding   Options Exercisable
          Weighted   Weighted               Weighted      
          Average   Average               Average      
          Exercise   Remaining     Aggregate         Exercise     Aggregate
          Price   Contractual     Intrinsic         Price     Intrinsic
    Shares     Per Share   Life (Years)     Value   Shares     Per Share     Value
$0.55 - $1.26   1,887,000    $ 1.04    5.2    $ 10,421,645    1,887,000    $ 1.04    $ 10,421,645 
$1.27 - $1.72   1,554,919    $ 1.53    2.8      7,828,087    1,554,919    $ 1.53      7,828,087 
$1.73 - $3.17   1,319,894    $ 2.41    5.9      5,476,782    841,505    $ 2.19      3,674,501 
$3.18 - $4.95   765,292    $ 4.13    6.9      1,859,600    276,581    $ 3.93      727,527 
$4.96 - $5.87   852,000    $ 5.87    9.9      587,880    17,743    $ 5.87      12,242 
    6,379,105              $ 26,173,994    4,577,748          $ 22,664,002