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Income (Loss) Per Share
 6 Months Ended
Jun. 30, 2019
Earnings Per Share [Abstract]  
Income (Loss) Per Share
7. Income (Loss) Per Share

 

Basic income (loss) per share is calculated based on the weighted-average number of outstanding common shares during the applicable period. Diluted income (loss) per share is based on the weighted-average number of outstanding common shares plus the weighted-average number of potential outstanding common shares. In periods where they are anti-dilutive, such amounts are excluded from the calculations of dilutive earnings per share. The following table reconciles the income (loss) and average share amounts used to compute both basic and diluted income (loss) per share:

 

   Three Months Ended   Six Months Ended 
   June 30,   June 30, 
   (Unaudited)   (Unaudited) 
(Amounts in Thousands, Except for Per Share Amounts)  2019   2018   2019   2018 
Net income (loss) attributable to Perma-Fix Environmental Services, Inc., common stockholders:                    
Income (loss) from continuing operations, net of taxes  $373   $788   $(177)  $1,040 
Net loss attributable to non-controlling interest   (31)   (28)   (61)   (68)
Income (loss) from continuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders   404    816    (116)   1,108 
Loss from discontinuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders   (115)   (206)   (267)   (363)
Net income (loss) attributable to Perma-Fix Environmental Services, Inc. common stockholders  $289   $610   $(383)  $745 
                     
Basic income (loss) per share attributable to Perma-Fix Environmental Services, Inc. common stockholders  $.02   $.05   $(.03)  $.06 
                     
Diluted income (loss) per share attributable to Perma-Fix Environmental Services, Inc. common stockholders  $.02   $.05   $(.03)  $.06 
                     
Weighted average shares outstanding:                    
Basic weighted average shares outstanding   12,054    11,813    12,008    11,780 
Add: dilutive effect of stock options   68    100    ─    69 
Diluted weighted average shares outstanding   12,122    11,913    12,008    11,849 
                     
Potential shares excluded from above weighted average share calcualtions due to their anti-dilutive effect include:                    
Upon exercise of options   113    100    186    100