Annual report pursuant to Section 13 and 15(d)

Stock Options (Tables)

v3.2.0.727
Stock Options (Tables)
12 Months Ended
Apr. 30, 2015
Compensation and Retirement Disclosure [Abstract]  
Key employee stock option award plan activity table
    Options Outstanding  
          Exercise     Weighted  
          price     average  
    Shares     per share     exercise price  
Balance April 30, 2013     280,242       $ 2.44-24.54     $ 12.04  
                         
Granted                  
Exercised                  
Expired     (34,665 )     6.72-24.54       10.41  
Balance April 30, 2014     245,577       $ 2.44-19.20     $ 12.27  
                         
Granted                  
Exercised                  
Expired     (119,831 )     6.72-19.20       16.24  
Balance April 30, 2015     125,746       $2.44-15.42     $ 8.48  
Non-employee director stock option award plan activity table
    Options Outstanding  
          Exercise     Weighted  
          price     average  
    Shares     per share     exercise price  
Balance April 30, 2013     31,333     $ 11.94-24.54     $ 15.60  
                         
Granted                  
Exercised                  
Expired     (12,666 )     15.42-24.54       17.34  
Balance April 30, 2014     18,667     $ 11.94-15.42     $ 14.43  
                         
Granted                  
Exercised                  
Expired     (18,667 )     11.94-15.42       14.43  
Balance April 30, 2015         $     $