Note 2 - Liquidity (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation	$ 2,258,000	$ 4,965,000
Crypto Asset, Fair Value	5,395,000
Working Capital	7,029,000
Net Income (Loss) Attributable to Parent	(6,355,000)	(4,043,000)
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation	(3,015,000)	(3,406,000)
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation	(8,736,000)	0
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation	$ 9,043,000	$ 2,381,000