The revenues for the three and six months ended June 30, 2026 and 2025 by category are as follows: (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment Reporting [Line Items]
Total revenue	$ 15,332	$ 20,359	$ 28,290	$ 34,984
Consumer Products [Member]
Segment Reporting [Line Items]
Total revenue	14,214	17,544	24,241	30,426
Personal Care ingredients [Member]
Segment Reporting [Line Items]
Total revenue	1,077	2,687	3,803	4,061
Advanced Materials [Member]
Segment Reporting [Line Items]
Total revenue	$ 41	$ 128	$ 246	$ 497

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details