Note 4 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands, shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Gain (Loss), Foreign Currency Transaction, before Tax	$ (200)	$ 100	$ (376)	$ 180
Number of Shares of Common Stock Potentially Issuable upon the Exercise of Stock Options and Warrants (in shares)			23.8	0.4