v3.25.4
Prepaid expenses and other current assets (Details) - USD ($)
Dec. 31, 2025
Dec. 31, 2024
Prepaid Expense and Other Assets, Current [Abstract]    
Prepaid insurance $ 209,000 $ 838,000
Contract assets 144,000 6,000
Deposits 433,000 489,000
Prepaid financing fees 505,000 290,000
Other 854,000 843,000
Prepaid expenses and other current assets $ 2,145,000 $ 2,466,000