v3.26.1
Revenue - Accounts receivables allowance (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Changes in accounts receivables allowance    
Allowance, beginning $ 35 $ 180
Write-off of accounts receivable (33) (186)
Bad debt expense 15 41
Allowance, end $ 17 $ 35