The revenues, by category, for the three and nine months ended September 30, 2023 and 2022 are as follows: (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue from External Customer [Line Items]
Total revenue	$ 7,958	$ 9,678	$ 29,286	$ 29,056
Solesence [Member]
Revenue from External Customer [Line Items]
Total revenue	5,016	5,932	17,839	18,591
Personal Care ingredients [Member]
Revenue from External Customer [Line Items]
Total revenue	2,364	2,903	8,944	8,589
Advanced Materials [Member]
Revenue from External Customer [Line Items]
Total revenue	$ 578	$ 843	$ 2,503	$ 1,876