The revenues for the three months and six months ended June 30, 2021 and 2020, by category, are as follows (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue from External Customer [Line Items]
Sales	$ 7,114	$ 4,335	$ 14,186	$ 8,374
Personal Care Ingredients [Member]
Revenue from External Customer [Line Items]
Sales	1,780	1,505	3,176	3,437
Advanced Materials [Member]
Revenue from External Customer [Line Items]
Sales	835	1,512	2,213	2,096
Solesence [Member]
Revenue from External Customer [Line Items]
Sales	$ 4,499	$ 1,318	$ 8,797	$ 2,841