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Consolidated Statements of Changes in Shareholders’ Equity (Unaudited) (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Statement of Stockholders' Equity [Abstract] |  |  |  |
Dividends per share (in usd per share) | $ 0.17 | $ 0.15 | $ 0.51 | $ 0.45
Issuance of stock to acquire Hamilton Bancorp, Inc. (in shares) |  |  |  | 1,765,704
Common shares forfeited (in shares) | 11,383 |  |  |
Common shares issued during the period (in shares) |  | 48,694 | 36,442 | 15,845
Treasury stock, shares acquired (in shares) | 5,634 | 45,505 | 32,804 | 36,474
Compensation expense, issuance of stock | $ 437 | $ 475 | $ 1,613 | $ 1,154

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