Note 7 - Goodwill (Details Textual) - USD ($) $ in Thousands		12 Months Ended
	Jan. 09, 2023	Dec. 31, 2024	Dec. 31, 2023	Jun. 30, 2023
Goodwill			$ 0
Goodwill, Impairment Loss		$ 0	$ 60,934
Old Catheter [Member]
Goodwill	$ 56,000			$ 60,934
Goodwill, Impairment Loss	$ 60,900