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 ($)
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Jan. 02, 2018
Dec. 31, 2017
Disposal/transportation accrual $ 1,449,000   $ 1,449,000   $ 1,616,000 $ 2,071,000
Deferred revenue 4,472,000   4,472,000   5,083,000 4,311,000
Accumulated deficit (77,465,000)   (77,465,000)   $ (78,210,000) $ (77,893,000)
Revenues 13,160,000 $ 12,715,000 25,817,000 $ 25,422,000    
Cost of goods sold 11,117,000 10,361,000 20,454,000 20,349,000    
Income from continuing operations, net of taxes 788,000 (1,226,000) 1,040,000 (1,901,000)    
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders $ 610,000 $ (1,169,000) $ 745,000 $ (1,896,000)    
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Continuing operations $ 0.07 $ (0.09) $ 0.09 $ (.14)    
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Net income (loss) per common share $ 0.05 $ (0.10) $ 0.06 $ (0.16)    
Net income $ 582,000 $ (1,386,000) $ 677,000 $ (2,192,000)    
Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders 561,000 $ (1,154,000) 688,000 $ (1,869,000)    
Effect of Change Higher/(Lower) [Member]            
Disposal/transportation accrual (323,000)   (323,000)      
Deferred revenue 738,000   738,000      
Accumulated deficit 57,000   57,000      
Revenues 145,000   29,000      
Cost of goods sold 92,000   22,000      
Income from continuing operations, net of taxes 53,000   7,000      
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders $ 53,000   $ 7,000      
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 $ 53,000   $ 7,000      
Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders 53,000   7,000      
Balances Before Adoption of Topic 606 [Member]            
Disposal/transportation accrual 1,772,000   1,772,000      
Deferred revenue 3,734,000   3,734,000      
Accumulated deficit (77,522,000)   (77,522,000)      
Revenues 13,015,000   25,788,000      
Cost of goods sold 11,025,000   20,432,000      
Income from continuing operations, net of taxes 735,000   1,033,000      
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders $ 557,000   $ 738,000      
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Continuing operations $ 0.07   $ 0.09      
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Net income (loss) per common share $ 0.05   $ 0.06      
Net income $ 529,000   $ 670,000      
Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders $ 508,000   $ 681,000