Note 13 - Subsequent Events (Details Textual) - USD ($)			3 Months Ended		9 Months Ended
	Nov. 11, 2025	Oct. 01, 2025	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Proceeds from Issuance of Common Stock						$ 349,000
Lincoln Park Capital Fund, LLC [Member]
Stock Issued During Period, Shares, New Issues (in shares)			4,222,467	0	8,299,752	766,175
Proceeds from Issuance of Common Stock			$ 764,000		$ 1,587,000	$ 260,000
Subsequent Event [Member] | Lawsuit Against Pooph Inc. 8:25-cv-02516 [Member] | Collectability of Royalty Receivables [Member]
Loss Contingency, Damages Sought, Value	$ 1,667,292
Subsequent Event [Member] | Lawsuit Against Pooph Inc. 8:25-cv-02516 [Member] | Collectability of Product Invoice Receivables [Member]
Loss Contingency, Damages Sought, Value	$ 2,154,110
Subsequent Event [Member] | Clyra Medical Technologies [Member]
Stock Issued During Period, Shares, New Issues (in shares)		23,077
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)		11,538
Proceeds from Issuance or Sale of Equity		$ 150,000
Subsequent Event [Member] | Lincoln Park Capital Fund, LLC [Member]
Stock Issued During Period, Shares, New Issues (in shares)		2,309,974
Proceeds from Issuance of Common Stock		$ 358,000