v3.26.1
Prepaid Expenses and Other Current Assets - Schedule of Prepaid Expenses and Other Current Assets (Detail) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]        
Research and development $ 1,092 $ 286 $ 0 $ 15
Insurance 288 138 65 147
Other 42 55 77 32
Total $ 1,422 $ 479 $ 142 $ 194