Quarterly report pursuant to Section 13 or 15(d)

(Loss) Income Per Share - Schedule of Earnings Per Share, Basic and Diluted (Details)

v3.8.0.1
(Loss) Income Per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Earnings Per Share [Abstract]        
Loss from continuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders $ (1,899,000) $ (1,365,000) $ (3,504,000) $ (13,008,000)
Loss from discontinuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders (145,000) (191,000) (436,000) (622,000)
Net loss attributable to Perma-Fix Environmental Services, Inc. common stockholders $ (2,044,000) $ (1,556,000) $ (3,940,000) $ (13,630,000)
Basic loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders $ (0.17) $ (0.13) $ (0.34) $ (1.18)
Diluted loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders $ (0.17) $ (0.13) $ (0.34) $ (1.18)
Basic weighted average shares outstanding 11,714,000 11,632,000 11,698,000 11,588,000
Add: dilutive effect of stock options
Add: dilutive effect of warrants
Diluted weighted average shares outstanding 11,714,000 11,632,000 11,698,000 11,588,000
Potential shares excluded from above weighted average share calculation due to their anti-dilutive effect include: Stock options 185,000 98,000 497,000 150,000