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LONG-TERM INVESTMENTS
6 Months Ended
Jun. 30, 2026
Long-Term Investments [Abstract]  
LONG-TERM INVESTMENTS LONG-TERM INVESTMENTS
The Company’s long-term investment balance primarily consisted of the following:

Equity investee:June 30,
2026
December 31,
2025
Ninebell$51,467 $31,310 
Wooil949 893 
Shengyi6,203 4,411 
Hefei Shixi4,375 5,335 
Company A4,404 4,269 
Subtotal67,398 46,218 
 Equity investments without readily determinable fair value using the measurement alternative 11,167 10,114 
Available for sale debt securities10,684 9,703 
Total long-term investments$89,249 $66,035 

Available-for-sale debt investments

The available-for-sale debt investments are investments in preferred shares that are redeemable at the Company’s option with no contractual maturity date, which are measured at fair value.

The following table summarizes the amortized cost and estimated fair value of the Company’s available-for-sale debt investments at June 30, 2026 and December 31, 2025:

June 30, 2026December 31, 2025
 Amortized Cost $7,499 $7,269 
 Estimated fair value 10,684 9,703