Annual report pursuant to Section 13 and 15(d)

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

v3.19.1
Summary of Significant Accounting Policies - Schedule of Impact of Adoption of Topic 606 (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Jan. 02, 2018
Disposal/transportation accrual $ 1,542 $ 2,071 $ 1,615
Deferred revenue 6,595 4,311 5,083
Accumulated deficit (79,630) (77,893) $ (78,209)
Revenues 49,539 49,769  
Cost of goods sold 41,078 41,149  
Loss from continuing operations, net of taxes (1,074) (3,538)  
Net loss attributable to Perma-Fix Services, Inc. common stockholders $ (1,421) $ (3,680)  
Net loss attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Continuing operations $ (.06) $ (.26)  
Net loss attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Net loss per common shares $ (.12) $ (.31)  
Net loss $ (1,741) $ (4,130)  
Comprehensive loss attributable to Perma-Fix Environmental Services, Inc. stockholders (1,523) $ (3,630)  
Effect of Change Higher/(Lower) [Member]      
Disposal/transportation accrual (340)    
Deferred revenue 588    
Accumulated deficit 165    
Revenues 184    
Cost of goods sold 19    
Loss from continuing operations, net of taxes 165    
Net loss attributable to Perma-Fix Services, Inc. common stockholders $ 165    
Net loss attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Continuing operations $ 0.01    
Net loss attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Net loss per common shares $ 0.01    
Net loss $ 165    
Comprehensive loss attributable to Perma-Fix Environmental Services, Inc. stockholders 165    
Balances Before Adoption of Topic 606 [Member]      
Disposal/transportation accrual 1,882    
Deferred revenue 6,007    
Accumulated deficit (79,795)    
Revenues 49,355    
Cost of goods sold 41,059    
Loss from continuing operations, net of taxes (1,239)    
Net loss attributable to Perma-Fix Services, Inc. common stockholders $ (1,586)    
Net loss attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Continuing operations $ (.07)    
Net loss attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Net loss per common shares $ (.13)    
Net loss $ (1,906)    
Comprehensive loss attributable to Perma-Fix Environmental Services, Inc. stockholders $ (1,688)