Note 14 - Common Stock (Tables)

6 Months Ended

Jun. 30, 2026

Notes Tables

Summary of Reserved Shares of Stock [Table Text Block]

	June 30,		December 31,
	2026		2025
	(unaudited)
Warrants to purchase common stock		8,669,576		8,513,550
Options issued and outstanding		356,002		392,494
Restricted stock units outstanding		28,494		50,736
Shares available for future incentive plan grants		2,774,278		101,105
Shares available for the conversion of Series A Preferred Stock		237,200		237,200
Shares available for the conversion of Series B Preferred Stock		4,451,166		1,610,180
Shares available for the conversion of Series C Preferred Stock		26,202,458		9,371,123
Total		42,719,174		20,276,388