Note 3 - Liquidity and Capital Resources (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Operating Income (Loss)	$ (1,992)	$ (1,606)	$ (3,215)	$ (4,254)
Net Cash Provided by (Used in) Operating Activities			(1,228)	(1,536)
Cash and cash equivalents	1,123		1,123		$ 817
Working Capital	3,880		3,880		$ 4,110
Revenues	$ 3,239	$ 9,181	13,190	$ 25,317
Blockchain-based SaaS services [Member]
Revenues			$ 750