Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Consolidated Statements of Changes in Stockholders' Equity [Abstract]
Restricted stock compensation expense, shares	11,135	13,839
Exercise of stock options, shares	7,798	14,748
Cash dividends- common stock per share	$ 0.28	$ 0.28
Sale of treasury shares to 401(k), shares	11,232	10,928
Sale of treasury shares to deferred compensation plan, shares	5,463	5,824