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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
COMMON STOCK |  |  |  |
New common shares issued for exercise of stock options, shares |  | 3,520 | 29,653 | 31,117
CAPITAL SURPLUS |  |  |  |
New common shares issued for exercise of stock options, shares |  | 3,520 | 29,653 | 31,117
RETAINED EARNINGS |  |  |  |
Cash dividend declared per common share | $ 0.030 | $ 0.030 | $ 0.090 | $ 0.085

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