Quarterly report pursuant to sections 13 or 15(d)

Earnings (Loss) Per Share (Details)

v2.4.0.6
Earnings (Loss) Per Share (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
(Loss) income per share from continuing operations attributable to Perma-Fix Environmental Services, Inc. [Abstract]        
(Loss) income from continuing operations $ (364) $ 4,421 $ (2,508) $ 6,440
Basic (loss) income per share (in dollars per share) $ (0.01) $ 0.08 $ (0.04) $ 0.12
Diluted (loss) income per share (in dollars per share) $ (0.01) $ 0.08 $ (0.04) $ 0.12
Loss per share from discontinued operations attributable to Perma-Fix Environemental Services, Inc. [Abstract]        
(Loss) income from discontinued operations (61) (187) (258) (7)
Basic loss per share (in dollars per share) $ 0 $ 0 $ (0.01) $ 0
Diluted loss per share (in dollars per share) $ 0 $ 0 $ (0.01) $ 0
Income per share from disposal of discontinued operations attributable to Perma-Fix Environemental Services, Inc. [Abstract]        
Gain on disposal of discontinued operations $ 0 $ 1,777 $ 0 $ 1,777
Basic income per share (in dollars per share) $ 0 $ 0.03 $ 0 $ 0.03
Diluted income per share (in dollars per share) $ 0 $ 0.03 $ 0 $ 0.03
Weighted average common shares outstanding - basic (in shares) 56,140 55,174 56,099 55,137
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) 56,140 55,174 56,099 55,142
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) 2,674 2,842 2,614 2,602
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