Note 9 - Earnings (Loss) Per Share Basic and Fully Diluted - Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Net (loss) income - basic	$ (1,390)	$ 706
Reversal of gain due to change in fair value of warrant liability	0	(340)
Net (loss) income - diluted	$ (1,390)	$ 366
Weighted average shares outstanding - basic (in shares)	211,934,041	211,007,522
Diluted preferred shares (in shares)	0	31,847,239
Weighted average shares outstanding - diluted (in shares)	211,934,041	242,854,761
Basic (loss) earnings per share (in dollars per share)	$ (0.01)	$ 0.00
Diluted (loss) earnings per share (in dollars per share)	$ (0.01)	$ 0.00