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Revenues and Trade Receivables, Net - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024	Dec. 31, 2023
Concentration Risk [Line Items]
Current and non-current contract assets	$ 678		$ 578
Contract liabilities	20,755		21,053
Capitalized contract cost, net	457		480
Contract and other receivables	$ 2,324		$ 2,473
Indivior \| Revenues \| Customer concentration risk
Concentration Risk [Line Items]
Concentrations of risk	72.00%	59.00%
Indivior \| Receivables \| Customer concentration risk
Concentration Risk [Line Items]
Concentrations of risk	76.00%		41.00%
Hypera \| Revenues \| Customer concentration risk
Concentration Risk [Line Items]
Concentrations of risk	18.00%
Hypera \| Receivables \| Customer concentration risk
Concentration Risk [Line Items]
Concentrations of risk	12.00%		16.00%
Haisco \| Revenues \| Customer concentration risk
Concentration Risk [Line Items]
Concentrations of risk		15.00%
Trade Accounts Receivable
Concentration Risk [Line Items]
Allowance for credit loss	$ 0		$ 48
Other Receivables And Accrued Expenses
Concentration Risk [Line Items]
Allowance for credit loss	924		665
Doubtful Accounts
Concentration Risk [Line Items]
Allowance for credit loss	$ 0		$ 0	$ 14
Maximum
Concentration Risk [Line Items]
Research and development, project duration	3 years