Note 8 - Income (Loss) Per Common Share (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Year ended December 31,
	2021			2020			2019
				Revised			Revised
Numerator
Net income (loss)	$	35,095		$	(9,457	)	$	(94,909	)
Preferred stock dividends		(552	)		(552	)		(552	)
Net income (loss) applicable to common shares	$	34,543		$	(10,009	)	$	(95,461	)
Denominator
Basic weighted average common shares		536,192			527,329			490,449
Dilutive stock options, restricted stock units, and warrants		5,984			—			—
Diluted weighted average common shares		542,176			527,329			490,449
Basic income (loss) per common share	$	0.06		$	(0.02	)	$	(0.19	)
Diluted income (loss) per common share	$	0.06		$	(0.02	)	$	(0.19	)