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Consolidated Statements of Stockholders' Equity (Unaudited) (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Cumulative effect of change in accounting principle tax | $ 925 |
RETAINED EARNINGS [Member] |  |
Dividend on common stock | $ 0.34 | $ 0.32

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