Note 4 - Property and Equipment - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Property and equipment, gross	$ 210	$ 188
Accumulated depreciation	(117)	(97)
Property and equipment, net	93	91
Machinery and Equipment [Member]
Property and equipment, gross	36	29
Computer Equipment [Member]
Property and equipment, gross	38	29
LockeT Animation Video [Member]
Property and equipment, gross	29	29
VIVO DEMO and Clinical Systems [Member]
Property and equipment, gross	$ 107	$ 101