v3.26.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Deferred revenue (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES    
Deferred revenue - current $ 9,337 $ 8,619
Deferred revenue - noncurrent 57 5
Total deferred revenue $ 9,394 $ 8,624