Business Segmentation and Geographical Distribution (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Sales	$ 4,335	$ 3,294	$ 8,374	$ 7,049
Personal Care Ingredients [Member]
Sales	1,505	2,151	3,437	4,160
Advanced Materials [Member]
Sales	1,512	750	2,096	1,600
Solesence [Member]
Sales	$ 1,318	$ 393	$ 2,841	$ 1,289

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details