Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Schedule of Impact of Adoption of Topic 606 (Details)

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Summary of Significant Accounting Policies - Schedule of Impact of Adoption of Topic 606 (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Jan. 02, 2018
Dec. 31, 2017
Disposal/transportation accrual $ 1,497   $ 1,497   $ 1,616 $ 2,071
Deferred revenue 5,872   5,872   5,083 4,311
Accumulated deficit (77,245)   (77,245)   $ (78,210) $ (77,893)
Revenues 11,984 $ 11,758 37,801 $ 37,179    
Cost of goods sold 10,159 10,013 30,612 30,362    
Income from continuing operations, net of taxes 317 (1,977) 1,358 (3,878)    
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders $ 221 $ (2,044) $ 965 $ (3,940)    
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Continuing operations $ 0.03 $ (.16) $ 0.12 $ (.30)    
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Net income (loss) per common share $ 0.02 $ (.17) $ 0.08 $ (.34)    
Net income $ 186 $ (2,122) $ 863 $ (4,314)    
Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders 239 $ (2,032) 926 $ (3,901)    
Effect of Change Higher/(Lower) [Member]            
Disposal/transportation accrual (438)   (438)      
Deferred revenue 718   718      
Accumulated deficit 37   37      
Revenues 26   55      
Cost of goods sold (4)   18      
Income from continuing operations, net of taxes 30   37      
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders $ 30   $ 37      
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Continuing operations        
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Net income (loss) per common share        
Net income $ 30   $ 37      
Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders 30   37      
Balances Before Adoption of Topic 606 [Member]            
Disposal/transportation accrual 1,935   1,935      
Deferred revenue 5,154   5,154      
Accumulated deficit (77,282)   (77,282)      
Revenues 11,958   37,746      
Cost of goods sold 10,163   30,594      
Income from continuing operations, net of taxes 287   1,321      
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders $ 191   $ 928      
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Continuing operations $ 0.03   $ 0.12      
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Net income (loss) per common share $ 0.02   $ 0.08      
Net income $ 156   $ 826      
Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders $ 209   $ 889