Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Consolidated Statements of Stockholders' Equity [Abstract]
ERB acquisition, shares	1,368,527
Redemption of preferred stock		13,000
Restricted stock compensation, shares	26,952	13,048
Exercise of stock options, net of tax and exercise price, shares	5,824	16,391
Cash Dividends-Common Stock per share	$ 0.28	$ 0.28
Sale of treasury shares to 401(k), shares	9,762	10,519
Sale of treasury shares to deferred compensation plan, Shares	5,873	5,158