Segment Information - Schedule of Segment Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021
Segment Reporting Information [Line Items]
Revenues	$ 40,022	$ 33,867
Gross profit	8,868	8,827
Operating loss	(16,775)	(8,996)
Depreciation and amortization	4,192	4,122
Interest expense, net	773	504
Net loss before provision for income taxes	(16,614)	(8,925)
Recycling
Segment Reporting Information [Line Items]
Revenues	40,022	33,867
Gross profit	8,868	8,827
Operating loss	(1,874)	(3,172)
Depreciation and amortization	448	376
Interest expense, net	773	504
Net loss before provision for income taxes	(1,694)	(2,980)
Biotechnology
Segment Reporting Information [Line Items]
Revenues	0	0
Gross profit	0	0
Operating loss	(1,351)	(1,738)
Depreciation and amortization	0	0
Interest expense, net	0	0
Net loss before provision for income taxes	(1,351)	(1,738)
Technology
Segment Reporting Information [Line Items]
Revenues	0	0
Gross profit	0	0
Operating loss	(13,550)	(4,086)
Depreciation and amortization	3,744	3,746
Interest expense, net	0	0
Net loss before provision for income taxes	$ (13,569)	$ (4,207)