Note 3 - Liquidity and Capital Resource and Going Concern Evaluation (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Operating Income (Loss)	$ (3,757)	$ (6,012)
Net Cash Provided by (Used in) Operating Activities	(2,058)	(2,012)
Cash and cash equivalents	812	817
Working Capital	3,330
Revenues	15,439	$ 30,585
Blockchain-based SaaS services [Member]
Revenues	$ 750