Note 2 - Revenue Recognition - Revenues Disaggregated by Geography (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Revenues	$ 26,677	$ 25,133
UNITED STATES
Revenues	21,022	17,802
Americas [Member]
Revenues	707	924
Europe [Member]
Revenues	2,239	2,146
SOUTH AFRICA
Revenues	318	2,570
Pacific Rim and Other Geographical Areas [Member]
Revenues	2,391	1,691
Non-US [Member]
Revenues	$ 5,655	$ 7,331