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Consolidated Statements Of Changes In Stockholders' Equity (Parenthetical) - shares | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2020 | Sep. 30, 2019
Issuance of stock based incentive plan, shares | 19,660 | 19,660 | 33,788
Treasury shares, acquisition |  | 1,869 |
Treasury shares, purchase |  | 61,000 |
Series C Preferred Stock [Member] |  |  |
Conversion of Series C preferred stock, shares |  | 12,607 |
Non-Voting Common Stock [Member] |  |  |
Non-voting common stock, shares |  | 1,260,700 |

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