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
Mar. 31, 2018
Mar. 31, 2017
Jan. 02, 2018
Dec. 31, 2017
Disposal/transportation accrual $ 1,478   $ 1,616 $ 2,071
Deferred revenue 4,620   5,083 4,311
Accumulated deficit (78,074)   $ (78,210) $ (77,893)
Revenues 12,658 $ 12,707    
Cost of goods sold 9,337 9,988    
Income (loss) from continuing operations, net of taxes 253 (675)    
Net income (loss) attributable to Perma-Fix Environmental Services, Inc. common stockholders $ 136 $ (727)    
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Continuing operations $ 0.02 $ (0.05)    
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Net income (loss) per common share $ 0.01 $ (0.06)    
Net income $ 96 $ (806)    
Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders 128 $ (715)    
Effect of Change Higher/(Lower) [Member]        
Disposal/transportation accrual (525)      
Deferred revenue (887)      
Accumulated deficit (46)      
Revenues (115)      
Cost of goods sold (69)      
Income (loss) from continuing operations, net of taxes (46)      
Net income (loss) attributable to Perma-Fix Environmental Services, Inc. common stockholders $ (46)      
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 $ (46)      
Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders (46)      
Balances Before Adoption of Topic 606 [Member]        
Disposal/transportation accrual 2,003      
Deferred revenue 5,507      
Accumulated deficit (78,028)      
Revenues 12,773      
Cost of goods sold 9,406      
Income (loss) from continuing operations, net of taxes 299      
Net income (loss) attributable to Perma-Fix Environmental Services, Inc. common stockholders $ 182      
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Continuing operations $ 0.02      
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Net income (loss) per common share $ 0.01      
Net income $ 142      
Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders $ 174