Note 3 - Revenue - Revenues Disaggregated by Geography (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenues	$ 7,851	$ 7,988	$ 19,850	$ 20,736
UNITED STATES
Revenues	5,453	5,640	13,519	15,937
Latin America [Member]
Revenues	208	157	816	310
Europe [Member]
Revenues	1,526	1,001	4,070	2,400
Asia [Member]
Revenues	664	1,190	1,445	2,089
Non-US [Member]
Revenues	$ 2,398	$ 2,348	$ 6,331	$ 4,799

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