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Condensed Consolidated Statements of Changes In Stockholders' Equity (Unaudited) (Parentheticals) - shares | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Equity Option [Member] |  |  |  |
Shares transferred from treasury stock (in shares) | 492,135 | 252,172 | 1,308,469 | 970,348
Restricted Stock [Member] |  |  |  |
Shares transferred from treasury stock (in shares) | 1,721 | 1,636 | 137,811 | 163,989
Treasury stock acquired, shares (in shares) | 276,290 | 490,716 | 1,892,187 | 1,488,779
Net share settlement (in shares) | 288 | 240 | 25,187 | 37,875
Other stock issuances, shares (in shares) | 13,637 | 13,657 | 35,792 | 35,562

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