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License Agreements (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2024
Oct. 03, 2023
Jul. 31, 2023
Impilo        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Investment owned (in shares)       766,000
Sanford Burnham Prebys        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Shares held by third party (in shares)   0    
Sanford Burnham Prebys | Impilo        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Investment owned (in shares)     191,500  
Sanford Burnham Prebys | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Shares issued under license agreement (in shares) 382,030      
Annual license maintenance fee $ 10      
Annual license maintenance fee, year seven 20      
Potential milestone payments $ 10,600      
Royalties, net of sales 4.00%      
Sublicensing fee 25.00%      
Option to terminate 60 days      
Termination of contract, lapse of payment 30 days