Note 13 - Registered Direct Offering (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Nov. 07, 2024	Dec. 31, 2024	Dec. 31, 2023
Prefunded Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)	2,934,690
Issuance of Equity, Purchase Price (in dollars per share)	$ 1.179
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 0.001
Registered Direct Offering [Member]
Stock Issued During Period, Shares, New Issues (in shares)	3,000,000
Shares Issued, Price Per Share (in dollars per share)	$ 1.18
Proceeds from Issuance or Sale of Equity	$ 6,800	$ 7,000	$ 0
Beneficial Ownership Limitation	9.99%