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Note 15 - Earnings Per Share (Details Textual) - shares
shares in Millions
3 Months Ended 12 Months Ended
Mar. 11, 2026
Feb. 26, 2021
Feb. 25, 2021
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Share-Based Payment Arrangement, Option [Member]            
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)       1.7 1.7  
Dilutive securities excluded from computation of earnings per share, amount (in shares)       0.7 1.6  
Restricted Stock Units (RSUs) [Member]            
Dilutive securities excluded from computation of earnings per share, amount (in shares)       1.8 1.8  
Series C Preferred Stock [Member]            
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)         1.2  
Series B Preferred Stock [Member]            
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)       0.3    
Preferred Stock, Dividend Rate, Percentage 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)       0.3 1.0  
Preferred Stock, Dividend Rate, Percentage 4.00% 4.00% 4.00% 4.00% 4.00% 4.00%