Note 3 - Revenues - Revenue by Geographic Destination (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Total revenues	$ 22,727	$ 20,450	$ 43,482	$ 42,224
UNITED STATES
Total revenues	10,503	9,656	19,308	19,483
Americas, Other [Member]
Total revenues	878	422	1,725	1,251
EMEA [Member]
Total revenues	6,783	6,588	13,254	12,618
CHINA
Total revenues	3,076	2,451	5,883	5,185
Asia, Other [Member]
Total revenues	$ 1,487	$ 1,333	$ 3,312	$ 3,687

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