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Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - USD ($) $ in Thousands | 6 Months Ended
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Jun. 30, 2019 | Jun. 30, 2018
Statement of Stockholders' Equity |  |
Dividends declared (in dollars per share) | $ 0.68 | $ 0.65
Share retired, shares | 3,830 |
Common stock grants awarded, net of unearned compensation | $ 164 | $ 113
Common stock grants awarded, net of unearned compensation (in shares) | 3,854 | 2,548

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