Note 2 - Summary of Significant Accounting Policies - Deferred Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Deferred revenue, beginning of period	$ 0	$ 0
Deferred revenue assumed as part of acquisition (see Note 3)	171	0
Revenue recognized during the period related to amounts included in the deferred revenue assumed	(92)	0
Revenue deferred, net of revenue recognized during the period	47	0
Deferred revenue, end of period	$ 126	$ 0

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Amount of revenue recognized in obligation to transfer good or service to customer for which consideration from customer has been received or is due, from business combination.

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