Note 9 - Stock Based Compensation (Tables)

6 Months Ended

Jun. 30, 2026

Notes Tables

Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block]

		*Shares Available for Grant*				*Number of Shares Outstanding*				*Weighted-Average Exercise Price*
Balance as of December 31, 2025			81				8,610			$	3.91
Authorized			2,749				-				-
Options Granted			(1,928	)			1,928				2.60
Common stock granted			(379	)			-				-
Exercised			-				(181	)			0.78
Forfeited/expired			294				(294	)			2.73
Balance as of June 30, 2026			817				10,063			$	3.75

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		*For the six months ended June 30,*
Description		*2026*				*2025*
Dividend-yield			-	%			-	%
Risk-free interest rate			3.9	%			4.3	%
Expected volatility			111.0	%			113.5	%
Expected life (years)			5.81				5.81
Market value per share on grant date		$	2.60			$	2.73
Fair value per option on grant date		$	2.18			$	2.32