Note 15 - Subsequent Events (Details Textual) - USD ($) $ / shares in Units, $ in Thousands				6 Months Ended
	Jul. 18, 2025	Jul. 11, 2024	May 10, 2024	Jun. 30, 2025	Jun. 30, 2024	May 14, 2024
Proceeds from Issuance or Sale of Equity				$ 0	$ 3,351
Securities Purchase Agreement [Member]
Stock Issued During Period, Shares, New Issues (in shares)			1,065,000
Shares Issued, Price Per Share (in dollars per share)			$ 2.15
Proceeds from Issuance or Sale of Equity		$ 3,400
Securities Purchase Agreement [Member] | Unregistered Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)						$ 2.34
Securities Purchase Agreement [Member] | Subsequent Event [Member]
Stock Issued During Period, Shares, New Issues (in shares)	1,612,903
Shares Issued, Price Per Share (in dollars per share)	$ 0.93
Sale of Stock, Ownership Limitation on Sale of Shares, Percent	19.90%
Sale of Stock, Service Fee, Percentage of Gross Proceeds	6.50%
Securities Purchase Agreement [Member] | Subsequent Event [Member] | Unregistered Warrants [Member]
Proceeds from Issuance or Sale of Equity	$ 1,500
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 1.2
Warrants and Rights Outstanding, Term (Year)	5 years