Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS - Assets and Liability Measured on Recurring Basis (Details)

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FAIR VALUE MEASUREMENTS - Assets and Liability Measured on Recurring Basis (Details) - Recurring - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Assets    
Total assets $ 29,317 $ 43,424
Money market funds    
Assets    
Total assets 26,822 40,799
Equity securities    
Assets    
Total assets 495 625
Other investments    
Assets    
Total assets 2,000 2,000
Level 1    
Assets    
Total assets 27,317 41,424
Level 1 | Money market funds    
Assets    
Total assets 26,822 40,799
Level 1 | Equity securities    
Assets    
Total assets 495 625
Level 3    
Assets    
Total assets 2,000 2,000
Level 3 | Other investments    
Assets    
Total assets $ 2,000 $ 2,000