Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details Narrative)

v3.20.1
Summary of Significant Accounting Policies (Details Narrative) - USD ($)
$ in Thousands
12 Months Ended
Oct. 02, 2019
Oct. 02, 2018
Dec. 31, 2019
Dec. 31, 2018
May 24, 2019
Jan. 02, 2019
Jan. 02, 2018
Cash on hand     $ 390 $ 810      
Finite risk sinking fund     $ 11,307 15,971      
Percentage of reserves for doubtful accounts receivable     100.00%        
Finance leases assets recorded     $ 1,410 517      
Finance leases accumulated depreciation     71 8      
Finance leases net fixed asset     1,339 509      
Depreciation     1,086 1,105      
Impairment charges          
Definite-lived permit       7      
Research and development expense     750 1,370      
Net revenues     73,459 49,539      
Increase in accumulated deficit             $ 316
Right of use asset     2,545   $ 2,602  
Operating lease liabilities     2,586     $ 2,622  
Government Clients [Member] | Sales Revenue, Net [Member]              
Net revenues     $ 59,985 $ 35,944      
Concentration risk percentage     81.70% 72.60%      
Customer One [Member] | Unbilled and Accounts Receivables [Member]              
Concentration risk percentage     12.50% 10.70%      
Customer Two [Member] | Unbilled and Accounts Receivables [Member]              
Concentration risk percentage     34.30% 10.50%      
Medical Segment [Member]              
Research and development expense     $ 314 $ 811      
Minimum [Member]              
Receipt ranging percentage     9.00%        
Minimum [Member] | Treatment/ Processing [Member]              
Receipt ranging percentage     15.00%        
Minimum [Member] | Shipment/ Final Disposal [Member]              
Receipt ranging percentage     9.00%        
Maximum [Member]              
Receipt ranging percentage     33.00%        
Maximum [Member] | Treatment/ Processing [Member]              
Receipt ranging percentage     79.00%        
Maximum [Member] | Shipment/ Final Disposal [Member]              
Receipt ranging percentage     52.00%        
Building [Member] | Minimum [Member]              
Property, plant and equipment, useful life     10 years        
Building [Member] | Maximum [Member]              
Property, plant and equipment, useful life     40 years        
Office Furniture And Equipment [Member] | Minimum [Member]              
Property, plant and equipment, useful life     3 years        
Office Furniture And Equipment [Member] | Maximum [Member]              
Property, plant and equipment, useful life     7 years        
Office/Warehouse Spaces [Member] | Minimum [Member]              
Operating lease term     4 years        
Operating lease renewal term     3 years        
Office/Warehouse Spaces [Member] | Maximum [Member]              
Operating lease term     10 years        
Operating lease renewal term     8 years        
Processing and Lab Equipment [Member] | Minimum [Member]              
Finance lease term     2 years        
Processing and Lab Equipment [Member] | Maximum [Member]              
Finance lease term     3 years        
Engineering/Remediation Resources Group, Inc [Member]              
Partnership interest         49.00%    
Perma-Fix [Member]              
Partnership interest         51.00%    
Foreign Subsidiaries [Member]              
Cash on hand     $ 388 $ 806