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Segment Information - Schedule of Segment Information (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 28, 2020
Mar. 30, 2019
Segment Reporting Information [Line Items]    
Revenues $ 8,450 $ 6,293
Gross profit 1,474 1,149
Operating loss (3,399) (2,875)
Depreciation and amortization 1,017 1,013
Interest expense, net 113 (8)
Net loss before benefit for income taxes (2,694) (2,728)
Recycling    
Segment Reporting Information [Line Items]    
Revenues 8,450 6,293
Gross profit 1,474 1,149
Operating loss (1,929) (1,805)
Depreciation and amortization 80 78
Interest expense, net 113 (8)
Net loss before benefit for income taxes (1,231) (1,658)
Biotechnology    
Segment Reporting Information [Line Items]    
Revenues 0 0
Gross profit 0 0
Operating loss (343) 0
Depreciation and amortization 0 0
Interest expense, net 0 0
Net loss before benefit for income taxes (343) 0
Technology    
Segment Reporting Information [Line Items]    
Revenues 0 0
Gross profit 0 0
Operating loss (1,127) (1,070)
Depreciation and amortization 937 935
Interest expense, net 0 0
Net loss before benefit for income taxes $ (1,120) $ (1,070)