Note 16 - Earnings Per Share (Details Textual) - shares shares in Millions				3 Months Ended			6 Months Ended		12 Months Ended
	Mar. 11, 2026	Feb. 26, 2021	Feb. 25, 2021	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Share-Based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)				1.7		2.5	1.7	1.7
Dilutive securities excluded from computation of earnings per share, amount (in shares)						1.3	0.9	1.5
Restricted Stock Units (RSUs) [Member]
Dilutive securities excluded from computation of earnings per share, amount (in shares)						1.6	2.9	1.7
Series C Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)						1.2		1.2
Series B Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)						1.0		1.0
Preferred Stock, Dividend Rate, Percentage							6.00%		4.00%
6.0% Series B Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)				0.1			0.1
Preferred Stock, Dividend Rate, Percentage	6.00%			6.00%	6.00%		6.00%		6.00%
4.0% Series B Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)						1.0		1.0
Preferred Stock, Dividend Rate, Percentage	4.00%	4.00%	4.00%		4.00%	4.00%	4.00%	4.00%	4.00%