Business Segments - Segment Financial Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) reportable_segment	Sep. 30, 2020 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | reportable_segment			3
Segment Reporting Information [Line Items]
Net sales	$ 17,308	$ 14,180	$ 49,690	$ 43,812
Cost of sales	6,730	5,726	19,068	17,959
Gross profit	10,578	8,454	30,622	25,853
Operating expenses:
Sales and marketing	7,221	5,223	19,711	14,629
Research and development	996	841	2,787	2,545
General and administrative	11,202	6,586	29,881	22,452
Total operating expenses	19,419	12,650	52,379	39,626
Operating loss	(8,841)	(4,196)	(21,757)	(13,773)
Corporate and other
Segment Reporting Information [Line Items]
Net sales	0	0	0	0
Cost of sales	0	0	0	0
Gross profit	0	0	0	0
Operating expenses:
Sales and marketing	0	0	0	0
Research and development	0	0	0	0
General and administrative	11,202	6,586	29,881	22,452
Total operating expenses	11,202	6,586	29,881	22,452
Operating loss	(11,202)	(6,586)	(29,881)	(22,452)
Consumer Products segment
Segment Reporting Information [Line Items]
Net sales	14,772	11,904	42,605	34,768
Consumer Products segment | Operating Segments
Segment Reporting Information [Line Items]
Net sales	14,772	11,904	42,605	34,768
Cost of sales	5,253	4,404	15,003	13,045
Gross profit	9,519	7,500	27,602	21,723
Operating expenses:
Sales and marketing	7,067	5,018	19,368	14,170
Research and development	895	783	2,539	2,236
General and administrative	0	0	0	0
Total operating expenses	7,962	5,801	21,907	16,406
Operating loss	1,557	1,699	5,695	5,317
Ingredients segment
Segment Reporting Information [Line Items]
Net sales	1,789	1,510	4,608	6,835
Ingredients segment | Operating Segments
Segment Reporting Information [Line Items]
Net sales	1,789	1,510	4,608	6,835
Cost of sales	732	599	1,970	2,790
Gross profit	1,057	911	2,638	4,045
Operating expenses:
Sales and marketing	10	47	21	39
Research and development	101	58	248	309
General and administrative	0	0	0	0
Total operating expenses	111	105	269	348
Operating loss	946	806	2,369	3,697
Analytical Reference Standards and Services segment
Segment Reporting Information [Line Items]
Net sales	747	766	2,477	2,209
Analytical Reference Standards and Services segment | Operating Segments
Segment Reporting Information [Line Items]
Net sales	747	766	2,477	2,209
Cost of sales	745	723	2,095	2,124
Gross profit	2	43	382	85
Operating expenses:
Sales and marketing	144	158	322	420
Research and development	0	0	0	0
General and administrative	0	0	0	0
Total operating expenses	144	158	322	420
Operating loss	$ (142)	$ (115)	$ 60	$ (335)