Note 1 - Organization and Significant Accounting Policies - Calculation of Basic and Diluted Shares (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021		Dec. 31, 2020
Net (loss) income	$ (139,805)	$ (8,908)	[1]	$ 1,983	[1]
Amount attributable to unvested restricted shares	0	0		(100)
Amount attributable to warrants outstanding	0	0		(61)
Net (loss) income allocated to common shareholders	$ (139,805)	$ (8,908)		$ 1,822
Basic and Diluted (in shares)	42,481,027	38,503,944		27,306,258
Basic (in dollars per share)	$ (3.29)	$ (0.23)		$ 0.07
Amount attributable to warrants	$ 0	$ 0		$ (14)
Less: gain related to change in fair value of warrants	0	0		(3,601)
Net loss allocated to common shareholders	$ (139,805)	$ (8,908)		$ (1,632)
Diluted (in dollars per share)	$ (3.29)	$ (0.23)		$ (0.06)

[1] The Consolidated Statements of Comprehensive (Loss) Income for the years ended December 31, 2021 and 2020 were adjusted by the impact to net (loss) income noted here. Comprehensive loss for the year ended December 31, 2021 is now reported at $9.2 million, reflecting an adjustment of $1.3 million, and was previously reported as $7.9 million. Comprehensive income for the year ended December 31, 2020 is now reported at $1.9 million, reflecting an adjustment of negative $684,000, and was previously reported as $2.7 million.