Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details Narrative)

v3.19.1
Summary of Significant Accounting Policies (Details Narrative) - USD ($)
$ in Thousands
12 Months Ended
Oct. 02, 2018
Oct. 02, 2017
Dec. 31, 2018
Dec. 31, 2017
Jan. 02, 2018
Cash on hand     $ 810 $ 1,063  
Finite risk sinking fund     $ 15,971 15,676  
Percentage of reserves for doubtful accounts receivable     100.00%    
Capital lease     $ 517 0  
Capital lease accumulated depreciation     8    
Capital lease net fixed asset     509    
Depreciation     1,105 3,429  
Impairment charges      
Revenues     49,539 49,769  
Increase in accumulated deficit         $ 316
Domestic Government [Member]          
Revenues     34,811 37,019  
Domestic Government [Member] | Sales Revenue, Net [Member]          
Revenues     $ 34,811 $ 37,019  
Concentration risk percentage     70.30% 74.40%  
Customer One [Member] | Accounts Receivable [Member]          
Concentration risk percentage     13.00% 17.90%  
Customer Two [Member] | Accounts Receivable [Member]          
Concentration risk percentage     10.10% 16.80%  
Medical Segment [Member]          
Research and development expense     $ 811 $ 1,141  
Minimum [Member]          
Receipt ranging percentage     9.00%    
Right of use assets and related to liabilities     $ 2,500    
Maximum [Member]          
Receipt ranging percentage     33.00%    
Right of use assets and related to liabilities     $ 2,700    
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    
Foreign Subsidiaries [Member]          
Cash on hand     $ 806 $ 305