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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares | 3 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
COMMON STOCK |  |
New common shares issued for exercise of stock options, shares | 27,584 | 8,856
CAPITAL SURPLUS |  |
New common shares issued for exercise of stock options, shares | 27,584 | 8,856
RETAINED EARNINGS |  |
Cash dividend declared per common share | $ 0.025 | $ 0.025

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