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Consolidated Statements of Changes in Shareholders’ Equity (Unaudited) (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Statement of Stockholders' Equity [Abstract] |  |  |  |
Dividends per share (in usd per share) | $ 0.15 | $ 0.13 | $ 0.30 | $ 0.25
Issuance of stock to acquire Hamilton Bancorp, Inc. (in shares) | 1,765,704 |  | 1,765,704 |
Issuance of stock, common stock forfeited (in shares) |  |  | 26,480 | 300
Compensation expense, issuance of stock | $ 180 | $ 444 | $ 679 | $ 924
Stock-based compensation plans, issuance of stock (in shares) | 0 | 0 | 19,034 | 75,623
Issuance of treasury stock (in shares) |  | 11,317 | 9,031 |
Treasury stock, shares acquired (in shares) |  |  |  | 21,965

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