v3.26.1
INVESTMENT IN EQUITY SECURITIES, AT FAIR VALUE AND LONG-TERM INVESTMENTS - Investment in equity securities, at fair value-BioInvent International AB ordinary shares and warrants (Details) - BioInvent International AB
kr in Millions
 1 Months Ended 3 Months Ended 12 Months Ended
Oct. 31, 2020
USD ($)
shares
Dec. 31, 2024
shares
Jun. 30, 2022
shares
Dec. 31, 2025
USD ($)
shares
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Oct. 31, 2020
SEK (kr)
Schedule of Investments              
Investment to be made $ 6,300,000           kr 53.8
Number of shares subscribed (in shares) | shares 1,200,000            
Number of new warrants subscribed (in shares) | shares 588,000            
Number of shares subscribed per warrant (in shares) 1           1
Subscription period for warrants (in years) 5 years            
Fair value of the warrants         $ 66,000    
Warrants expected life (in years)   10 months 28 days     10 months 28 days    
Unrealized losses       $ (66,000)   $ (200,000)  
Unrealized gains         $ 61,000    
Recognized (losses) or gains       $ (100,000) $ 1,500,000 $ (1,100,000)  
Common Stock              
Schedule of Investments              
Number of ordinary shares sold (in shares) | shares   164,439 275,000 736,373      
Expected volatility              
Schedule of Investments              
Warrants , Measurement Input   55.6     55.6    
Risk Free Interest Rate              
Schedule of Investments              
Warrants , Measurement Input   2.07     2.07