v3.26.1
Note 6 - Concentrations - Summary of Long-lived Assets by Area (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Dec. 31, 2024
Property and equipment, net $ 184 $ 183 $ 227
UNITED STATES      
Property and equipment, net 175 174 213
Non-US [Member]      
Property and equipment, net $ 9 $ 9 $ 14