Note 12 - Loss Per Common Share - Calculation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Loss from continuing operations, net of income taxes	$ (36,670)	$ (16,309)
Income from discontinued operations, net of income taxes	(953)	(1,643)
Net loss	$ (37,623)	$ (17,952)
Basic and diluted weighted average number of shares outstanding (in shares)	83,126,709	44,564,868
Loss from continuing operations per common share - basic and diluted (in dollars per share)	$ (0.44)	$ (0.36)
Income from discontinued operations - basic and diluted (in dollars per share)	(0.01)	(0.04)
Loss per common share - basic and diluted (in dollars per share)	$ (0.45)	$ (0.40)