v3.25.4
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Sep. 30, 2024
Dec. 31, 2023
Dec. 31, 2022
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES          
Cash $ 3,800 $ 1,329 $ 2,898 $ 2,237  
Cash equivalents 162 3,228   584  
Restricted cash 309 307 306 307  
Total cash, cash equivalents and restricted cash $ 4,271 $ 4,864 $ 3,204 $ 3,128 $ 4,061