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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
New common shares issued for exercise of stock options, shares	36,117	21,356	38,235
Cash dividend declared per common share	$ 0.115	$ 0.100	$ 0.100
COMMON STOCK
New common shares issued for exercise of stock options, shares	36,117	21,356	38,235
TREASURY STOCK
Treasury stock, purchased at cost, shares			35,962
CAPITAL SURPLUS
New common shares issued for exercise of stock options, shares	36,117	21,356	38,235
RETAINED EARNINGS
Cash dividend declared per common share	$ 0.115	$ 0.100	$ 0.100

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Aggregate dividends declared during the period for each share of common stock outstanding.

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Number of share options (or share units) exercised during the current period.

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