Consolidated Statements Of Changes In Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018
Statement of Stockholders' Equity [Abstract]
Issuance of restricted stock, stock incentive plan, shares	0	10,000	0	9,109
Issuance of common stock, dividend investment plan, shares	5,708	3,685	3,171	5,681
Stock Issued During Period, Shares, Employee Benefit Plan	4,064	0	3,767	0
Repurchase and retirement of common stock, shares	43,555	1,500	0	5,000
Dividends declared, per share	$ 0.25	$ 0.24	$ 0.23	$ 0.23