Note 3 - Business Combination - Pro Forma Information (Details) - FLYTE [Member] - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Revenues	$ 956	$ 324
Total net loss	(1,656)	(4,700)
Cardiac Electrophysiology [Member]
Revenues	248	143
Total net loss	(1,558)	(4,045)
FLYTE Business Segment [Member]
Revenues	708	181
Total net loss	$ (98)	$ (655)

Amount, after tax, of pro forma income (loss) of combined entity as if acquisition date of business combination occurred as of beginning of period.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
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