Note 2 - Revenue Recognition - Timing of Revenue Recognition (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Revenues	$ 25,133	$ 27,081
Transferred at Point in Time [Member]
Revenues	17,236	17,584
Transferred over Time [Member]
Revenues	$ 7,897	$ 9,497

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