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v3.21.1

Consolidated Statement of Changes in Stockholders' Equity (Parenthetical) - $ / shares | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020
Exercise of stock options (shares) | 7,000 | 500 |
Cash dividends on common stock (per share) | $ 0.14 | $ 0.14 |
Treasury stock purchases (shares) | 32,093 | 127,058 |
Series C Preferred Stock [Member] |  |  |
Preferred stock, dividend rate |  | 6.00% |
Series D Preferred Stock [Member] |  |  |
Preferred stock, dividend rate | 4.50% | 4.50% | 4.50%
Series F Preferred Stock [Member] |  |  |
Preferred stock, dividend rate |  | 6.00% |
Series G Preferred Stock [Member] |  |  |
Preferred stock, dividend rate | 6.00% | 6.00% | 6.00%
Series H Preferred Stock [Member] |  |  |
Preferred stock, dividend rate | 3.50% | 3.50% | 3.50%

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