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Consolidated Statement of Changes in Stockholders' Equity (Parentheticals) - $ / shares	3 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021
Dividends on common share (in dollars per share)	$ 0.22	$ 0.22	$ 0.21	$ 0.21
Common Stock [Member]
Common shares released from Employee Benefit Trust, shares (in shares)		17,964	6,445	5,682
Restricted stock unit awards vested, shares (in shares)	2,015	297,626	10,932	248,896
Purchase of treasury shares (in shares)	387,689
Treasury Stock [Member]
Purchase of treasury shares (in shares)		360,000
Repurchase of shares to satisfy tax obligation, shares (in shares)	766	97,435	3,886	70,292

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

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