The revenues for the three months and nine months ended September 30, 2021 and 2020, by category, are as follows: (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenue from External Customer [Line Items]
Sales	$ 7,924	$ 3,888	$ 22,110	$ 12,262
Personal Care Ingredients [Member]
Revenue from External Customer [Line Items]
Sales	2,171	753	5,347	4,190
Advanced Materials [Member]
Revenue from External Customer [Line Items]
Sales	1,182	1,582	3,394	3,678
Solesence [Member]
Revenue from External Customer [Line Items]
Sales	$ 4,571	$ 1,553	$ 13,369	$ 4,394