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Note 12 - Net Income (Loss) per Share Attributable to Sterling Common Stockholders
9 Months Ended
Sep. 30, 2013
Earnings Per Share [Abstract]  
Earnings Per Share [Text Block]
12.  
Net Income (Loss) per Share Attributable to Sterling Common Stockholders

Basic net income (loss) per share attributable to Sterling common stockholders is computed by dividing net income (loss) attributable to Sterling common stockholders by the weighted average number of common shares outstanding during the period.  Diluted net income (loss) per common share attributable to Sterling common stockholders is the same as basic net income (loss) per share attributable to Sterling common stockholders but includes dilutive stock options and restricted stock using the treasury stock method.  The following table reconciles the numerators and denominators of the basic and diluted per common share computations for net income (loss) attributable to Sterling common stockholders (amounts in thousands, except per share data):

   
Three Months Ended
September 30,
   
Nine Months Ended
September 30,
 
   
2013
   
2012
   
2013
   
2012
 
Numerator:
                       
Net income (loss) attributable to Sterling common stockholders
  $ (189 )   $ 990     $ (21,792 )   $ (3,223 )
Revaluation of the  of noncontrolling interest obligations reflected in retained earnings or additional paid in capital, net of tax
    (766 )     (762 )     (1,100 )     (1,239 )
    $ (955 )   $ 228     $ (22,892 )   $ (4,462 )
Denominator:
                               
Weighted average common shares outstanding — basic
    16,652       16,405       16,626       16,362  
Shares for dilutive stock options and warrants 
    -       99       -       -  
Weighted average common shares outstanding and assumed conversions— diluted 
    16,652       16,504       16,626       16,362  
Basic net income (loss) per share attributable to Sterling common stockholders
  $ (0.06 )   $ 0.01     $ (1.38 )   $ (0.27 )
Diluted net income (loss) per share attributable to Sterling common stockholders
  $ (0.06 )   $ 0.01     $ (1.38 )   $ (0.27 )

There were no weighted average options outstanding during the three and nine months ended September 30, 2013, and 2,800 in the three and nine months ended September 30, 2012, which were considered antidilutive as the option exercise price exceeded the average share market price and were, therefore, excluded from the denominator used for computing diluted loss per share attributable to Sterling common stockholders.  In addition, and in accordance with the treasury stock method, 63,457 and 113,913 shares of stock options and restricted stock were excluded from the diluted weighted average common shares outstanding for the three and nine months ended September 30, 2013, respectively, and 119,673 for the nine months ended September 30, 2012, as the Company incurred a loss during these periods and the impact of such shares would have been antidilutive.