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Consolidated Statements of Stockholders' Equity (Unaudited) (Parenthetical) - $ / shares | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2021 | Sep. 30, 2020
Statement of Stockholders' Equity [Abstract] |  |  |
Dividends per share | $ 0.20 | $ 0.60 | $ 0.57
Treasury shares |  |  | 106,894
Stock Issued During Period, Shares, Restricted Stock Award, Gross | 2,880 | 2,880 | 17,350
Exercise of stock option, shares | 152 | 5,918 | 3,136

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