Quarterly report pursuant to sections 13 or 15(d)

Earnings (Loss) Per Share (Details)

v2.3.0.11
Earnings (Loss) Per Share (Details) (USD $)
In Thousands, except Per Share data
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Loss per share from continuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders [Abstract]        
Loss from continuing operations $ (1,231) $ 2,552 $ (2,143) $ 2,019
Basic loss per share (in dollars per share) $ (0.02) $ 0.05 $ (0.04) $ 0.04
Diluted loss per share (in dollars per share) $ (0.02) $ 0.05 $ (0.04) $ 0.04
(Loss) income per share from discontinued operations attributable to Perma-Fix Environmental Services, Inc. common stockholders [Abstract]        
(Loss) income from discontinued operations $ (60) $ (32) $ (198) $ 180
Basic (loss) income per share (in dollars per share) $ 0 $ 0 $ 0 $ 0
Diluted (loss) income per share (in dollars per share) $ 0 $ 0 $ 0 $ 0
Weighted average common shares outstanding - basic (in shares) 56,094 55,136 56,078 55,118
Potential shares exercisable under stock option plans (in shares) 0 0 0 5
Potential shares upon exercise of Warrants (in shares) 0 0 0 0
Weighted average common shares outstanding - diluted (in shares) 56,094 55,136 56,078 55,123
Options [Member]
       
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Potential shares excluded from above weighted average share calculations due to their anti-dilutive effect included (in shares) 2,614 2,467 2,124 2,317
Warrants [Member]
       
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Potential shares excluded from above weighted average share calculations due to their anti-dilutive effect included (in shares) 0 150 0 150