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Revenues and Trade Receivables, Net - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Concentration Risk [Line Items]      
Contract and other receivables $ 2,915 $ 2,139  
Allowance for doubtful accounts 14 40 $ 40
Allowance expense (reduction) (26) 0  
Provision (reversal) related to sales 0    
Accounts receivable allowances and accruals 0 669 $ 605
Accrued distribution expenses $ 645 $ 1,012  
Commercial Exploitation Agreement with Indivior | Revenue | Customer Concentration Risk      
Concentration Risk [Line Items]      
Concentrations of risk 80.00% 76.00%  
Commercial Exploitation Agreement with Indivior | Receivables | Customer Concentration Risk      
Concentration Risk [Line Items]      
Concentrations of risk 65.00% 80.00%  
Commercial Exploitation Agreement with Zevra | Receivables | Customer Concentration Risk      
Concentration Risk [Line Items]      
Concentrations of risk 13.00%