Note 17 - Net (Loss) Income Per Common Share - Calculation of Diluted Shares (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Net (loss) income	$ (9,957)	$ 79	$ (89,577)	$ 6,837
Amount attributable to unvested restricted shares	0	(2)	0	(212)
Amount attributable to warrants outstanding	0	0	0	(4)
Net (loss) income allocated to common shareholders	$ (9,957)	$ 77	$ (89,577)	$ 6,621
Basic (in shares)	42,647,967	40,911,801	42,376,392	37,435,224
Basic (in dollars per share)	$ (0.23)	$ 0.00	$ (2.11)	$ 0.18
Amount attributable to unvested restricted shares	$ 0	$ (2)	$ 0	$ (205)
Amount attributable to warrants	0	0	0	(4)
Diluted (loss) earnings per common share	$ (9,957)	$ 77	$ (89,577)	$ 6,628
Warrants (in shares)	0	0	0	24,338
Diluted weighted average shares issued and outstanding (in shares)	42,647,967	43,296,470	42,376,392	39,984,923
Diluted (in dollars per share)	$ (0.23)	$ 0.00	$ (2.11)	$ 0.17
Share-Based Payment Arrangement, Option [Member]
Share-Based Payment Arrangements (in shares)	0	1,069,207	0	1,330,207
Restricted Stock [Member]
Share-Based Payment Arrangements (in shares)	0	1,315,462	0	1,195,154