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Earnings Per Share
 12 Months Ended
Dec. 31, 2013
Earnings Per Share [Abstract]  
Earnings Per Share
Note 7 - Earnings Per Share

Basic earnings per share are based on the weighted average number of shares outstanding for a period.  Diluted earnings per share are based upon the weighted average number of shares and potentially dilutive common shares outstanding.  Potential common shares outstanding principally include stock options, under our stock plan and warrants. During 2013, 2012 and 2011 we incurred losses; therefore the effect of any common stock equivalent would be anti-dilutive during those periods.

The table below sets forth the basic loss per share calculations:

 
 
Period Ended December 31,
 
 
 
2013
  
2012
  
2011
 
Net loss
 
$
(27,608
)
 
$
(26,924
)
 
$
(17,263
)
Basic weighted average number of shares outstanding
  
51,188
   
50,934
   
50,028
 
Diluted weighted average number of shares outstanding
  
51,188
   
50,934
   
50,028
 
Basic and diluted loss per share
 
$
(0.54
)
 
$
(0.53
)
 
$
(0.35
)