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Consolidated Statements of Changes to Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Issuance of shares of restricted stock, Shares	38,100	33,000	32,000
Cash dividends declared, per share	$ 0.61	$ 0.56	$ 0.50
Common Stock [Member]
Issuance of shares of restricted stock, Shares	38,100	33,000	32,000
Issuance of shares of restricted stock, forfeitures	3,220	2,620	1,080
Issuance of shares of common stock in acquisition	1,830,000

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

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