Note 3 - Revenue - Revenues Disaggregated by Geography (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Revenues	$ 8,676	$ 7,490	$ 21,241	$ 19,430
UNITED STATES
Revenues	7,490	5,626	18,638	15,427
Latin America [Member]
Revenues	303	166	678	579
Europe [Member]
Revenues	232	698	930	1,882
Africa [Member]
Revenues	2	68	16	262
Asia [Member]
Revenues	649	932	979	1,280
Non-US [Member]
Revenues	$ 1,186	$ 1,864	$ 2,603	$ 4,003