Note 8 - Earnings Per Share - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Net loss	$ (1,698)	$ (4,535)	$ (8,244)	$ (24,774)
Deemed dividend	0	(635)	(86)	(635)
Net loss attributable to common stockholders	$ (1,698)	$ (5,170)	$ (8,330)	$ (25,409)
Weighted average shares outstanding – basic (in shares)	5,588	4,195	5,315	3,909
Potential common shares – options / warrants (treasury stock method) (in shares)	0	0	0	0
Weighted average shares outstanding – diluted (in shares)	5,588	4,195	5,315	3,909
Shares excluded (anti-dilutive) (in shares)	7,029	1,963	5,860	1,799
Basic (in dollars per share)	$ (0.3)	$ (1.23)	$ (1.57)	$ (6.5)
Diluted (in dollars per share)	$ (0.3)	$ (1.23)	$ (1.57)	$ (6.5)