Note 17 - Net Loss Per Share - Calculation of Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2026	Jun. 30, 2025
Net Income (Loss) Attributable to Parent	$ (7,103)	$ (6,202)	$ (1,931)	$ (1,502)	$ (13,305)	$ (3,433)
Net loss available to common stockholders	$ (7,349)		$ (1,932)		$ (13,786)	$ (3,434)
Weighted-average number of shares of common stock outstanding (in shares)	3,379,997		881,294		3,002,815	739,618
Net loss per share - basic (in dollars per share)	$ (2.17)		$ (2.19)		$ (4.59)	$ (4.64)
Series B Preferred Stock [Member]
Net Income (Loss) Attributable to Parent	$ 0	0	$ 0	0
Less dividends on Preferred Stock	(52)		(1)		$ (93)	$ (1)
Series C Preferred Stock [Member]
Net Income (Loss) Attributable to Parent	0	$ 0	0	$ 0
Less dividends on Preferred Stock	$ (194)		$ 0		$ (388)	$ 0