Consolidated Condensed Statements Of Changes In Stockholders' Equity (Parenthetical) - $ / shares	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Statement of Stockholders' Equity [Abstract]
Cash dividends on common stock per share	$ 2.82	$ 2.82
Treasury Stock, Shares, Acquired	70,000	0
Stock Issued During Period, Shares, Restricted Stock Award, Gross	9,674	0