Business Segments - Segment Financial Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) reportable_segment	Jun. 30, 2021 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | reportable_segment			3
Segment Reporting Information [Line Items]
Net sales	$ 16,732	$ 17,699	$ 33,991	$ 32,382
Cost of sales	6,690	6,889	13,417	12,338
Gross profit (loss)	10,042	10,810	20,574	20,044
Operating expenses:
Sales and marketing	8,021	6,232	16,258	12,490
Research and development	1,245	1,004	2,323	1,791
General and administrative	7,163	9,128	16,112	18,679
Total operating expenses	16,429	16,364	34,693	32,960
Operating loss	(6,387)	(5,554)	(14,119)	(12,916)
Corporate and other
Segment Reporting Information [Line Items]
Net sales	0	0	0	0
Cost of sales	0	0	0	0
Gross profit (loss)	0	0	0	0
Operating expenses:
Sales and marketing	0	0	0	0
Research and development	0	0	0	0
General and administrative	7,163	9,128	16,112	18,679
Total operating expenses	7,163	9,128	16,112	18,679
Operating loss	(7,163)	(9,128)	(16,112)	(18,679)
Consumer Products segment
Segment Reporting Information [Line Items]
Net sales	14,520	15,396	29,457	27,833
Consumer Products segment | Operating Segments
Segment Reporting Information [Line Items]
Net sales	14,520	15,396	29,457	27,833
Cost of sales	5,218	5,547	10,470	9,750
Gross profit (loss)	9,302	9,849	18,987	18,083
Operating expenses:
Sales and marketing	7,864	6,190	15,938	12,301
Research and development	1,113	926	2,115	1,644
General and administrative	0	0	0	0
Total operating expenses	8,977	7,116	18,053	13,945
Operating loss	325	2,733	934	4,138
Ingredients segment
Segment Reporting Information [Line Items]
Net sales	1,464	1,504	2,891	2,819
Ingredients segment | Operating Segments
Segment Reporting Information [Line Items]
Net sales	1,464	1,504	2,891	2,819
Cost of sales	681	675	1,403	1,238
Gross profit (loss)	783	829	1,488	1,581
Operating expenses:
Sales and marketing	0	1	24	11
Research and development	132	78	208	147
General and administrative	0	0	0	0
Total operating expenses	132	79	232	158
Operating loss	651	750	1,256	1,423
Analytical Reference Standards and Services segment
Segment Reporting Information [Line Items]
Net sales	748	799	1,643	1,730
Analytical Reference Standards and Services segment | Operating Segments
Segment Reporting Information [Line Items]
Net sales	748	799	1,643	1,730
Cost of sales	791	667	1,544	1,350
Gross profit (loss)	(43)	132	99	380
Operating expenses:
Sales and marketing	157	41	296	178
Research and development	0	0	0	0
General and administrative	0	0	0	0
Total operating expenses	157	41	296	178
Operating loss	$ (200)	$ 91	$ (197)	$ 202