Note 5 - Capital Stock - Summary of Common Stock Outstanding (Details) - shares	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Issuances related to stock compensation (in shares)		4,490
Less Treasury Shares: (in shares)	(189)	(189)
Common stock, shares outstanding (in shares)	1,144,737	573,455
Common Stock [Member]
Issued Shares (in shares)	573,644	208,047
Issuances from Preferred Stock conversions (in shares)	288,968	352,624
Issuances related to warrants (in shares)		18,653
Issuances related to stock compensation (in shares)		4,490
Common shares exchanged for pre-funded warrants (in shares)		(10,170)
Issuances related to Common Warrant exercises (in shares)	282,314
Issued Shares (in shares)	1,144,926	573,644
Less Treasury Shares: (in shares)	(189)
Common stock, shares outstanding (in shares)	1,144,737