Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Income (Loss) Per Share (Details) - Basic and Diluted Income (Loss) Per Share

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Note 5 - Income (Loss) Per Share (Details) - Basic and Diluted Income (Loss) Per Share - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Net (loss) income attributable to Perma-Fix Environmental Services, Inc., common stockholders:        
Income (loss) from continuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders (in Dollars) $ 559 $ (2,361) $ (1,282) $ (6,063)
(Loss) income from discontinuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders (in Dollars) (713) 2,372 (936) 2,105
Net (loss) income attributable to Perma-Fix Environmental Services, Inc. common stockholders (in Dollars) $ (154) $ 11 $ (2,218) $ (3,958)
Basic (loss) income per share attributable to Perma-Fix Environmental Services, Inc. common stockholders (in Dollars per share) $ (0.01)   $ (0.19) $ (0.35)
Diluted (loss) income per share attributable to Perma-Fix Environmental Services, Inc. common stockholders (in Dollars per share) $ (0.01)   $ (0.19) $ (0.35)
Weighted average shares outstanding:        
Basic weighted average shares outstanding 11,505 11,433 11,496 11,426
Add: dilutive effect of stock options 4      
Add: dilutive effect of warrants 27      
Diluted weighted average shares outstanding 11,536 11,433 11,496 11,426
Potential shares excluded from above weighted average share calcualtions due to their anti-dilutive effect include:        
Upon exercise of options 202,600 276,800 185,800 276,800