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Consolidated Statements of Changes In Shareholders' Equity (Parenthetical) - shares | 3 Months Ended
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Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020
Repurchased stock, Shares |  |  | 5,800 | 12,129 | 80,523 |
Stock issued during period shares, Director Stock Purchase Plans | 1,225 | 1,229 | 1,253 | 2,434 | 2,231 | 1,743
Stock issued during period shares, Restricted stock activity | 21,833 |  |  | 14,770 |  |
Common Stock [Member] |  |  |  |  |  |
Stock issued during period, shares, Employee Stock Purchase Plans | 1,784 | 1,388 | 1,459 | 2,113 | 2,365 | 1,647
Common shares issued through follow-on public offering, shares |  | 2,990,000 |  |  |  |

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