Note 5 - (Loss) Income Per Common Share - Net Income Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Net (loss) income	$ (23,526)	$ (979)	$ (32,896)	$ 23,220
Preferred stock dividends	(138)	(138)	(414)	(414)
Net (loss) income applicable to common shares	$ (23,664)	$ (1,117)	$ (33,310)	$ 22,806
Basic weighted average common shares (in shares)	554,531	536,966	544,000	535,542
Dilutive restricted stock units, warrants and deferred shares	0	0	0	6,227
Diluted weighted average common shares (in shares)	554,531	536,966	544,000	541,769
Basic (loss) income per common share (in dollars per share)	$ (0.04)	$ 0	$ (0.06)	$ 0.04
Diluted (loss) income per common share (in dollars per share)	$ (0.04)	$ 0	$ (0.06)	$ 0.04