Note 3 - Liquidity and Capital Resources (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Operating Income (Loss)	$ (301)	$ (1,336)	$ (1,223)	$ (2,648)
Net Cash Provided by (Used in) Operating Activities			(1,030)	(862)
Cash and cash equivalents	510		510		$ 817
Working Capital	3,950		3,950		$ 4,110
Revenues	$ 6,420	$ 9,820	9,951	$ 16,136
Blockchain-based SaaS services [Member]
Revenues			$ 750

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details