Note 5 - Earnings Per Common Share - Net Income Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Notes To Financial Statements [Abstract]
Net Income (Loss)	$ 57,705	$ 27,870	$ 86,577	$ 22,117
Preferred stock dividends	(138)	(138)	(276)	(276)
Net income applicable to common stockholders	$ 57,567	$ 27,732	$ 86,301	$ 21,841
Basic weighted average common shares	636,928	617,106	634,339	616,649
Dilutive units	2,811	5,100	2,652	3,710
Diluted weighted average common shares	639,739	622,206	636,991	620,359
Basic earnings per common share	$ 0.09	$ 0.04	$ 0.14	$ 0.04
Diluted earnings per common share	$ 0.09	$ 0.04	$ 0.14	$ 0.04