Note 3 - Revenue - Revenues Disaggregated by Geography (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Revenues	$ 6,382	$ 4,957
UNITED STATES
Revenues	5,359	3,595
Latin America [Member]
Revenues	348	315
Europe [Member]
Revenues	477	420
Africa [Member]
Revenues	38	436
Asia [Member]
Revenues	160	191
Non-US [Member]
Revenues	$ 1,023	$ 1,362

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details