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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY
Treasury stock, purchased at cost, shares	602,349	533,352	839,337
New common shares issued for exercise of stock options, shares	40,917	24,408	64,112
Cash dividend declared per common share	$ 0.095	$ 0.075	$ 0.060

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- Definition

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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Number of shares that have been repurchased during the period and are being held in treasury.

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