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Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares | 3 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
Incentive compensation units distributed, shares (in shares) | 888,000 |
Common stock dividends declared, per common share (in dollars per share) | $ 0.00625 | $ 0.00875
Preferred stock dividends declared, per share (in dollars per share) | $ 0.875 | $ 0.875
Common stock issued for 401(k) match, shares (in shares) | 180,000 | 165,000
Common stock issued to pension plans, shares (in shares) |  | 3,500,000

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