Earnings Per Comon Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Earnings Per Share [Abstract]
Net Income	$ 6,147		$ 5,623		$ 16,991		$ 16,011
Basic, in shares	12,606	[1]	12,555	[1]	12,601	[1]	12,527	[1]
Basic Earnings, in dollars per share	$ 0.49	[1]	$ 0.45	[1]	$ 1.35	[1]	$ 1.28	[1]
Dilutive Average Shares Attributable to Stock Options, in shares	15	[2]	36	[2]	12	[1]	21
Diluted, in shares	12,621	[1],[2]	12,591	[1],[2]	12,613	[1]	12,548	[1],[2]
Diluted Earnings, in dollars per share	$ 0.49	[1]	$ 0.45	[1]	$ 1.35	[1]	$ 1.28	[1]
Antidilutive Securities Excluded from the Calculation of Earnings Per Share, in shares	0	[2]	47	[2]	0	[1]	47	[2]

[1] Share and Per Share Amounts have been restated for the September 2014 2% stock dividend.

[2] All share and per share amounts have been adjusted for the September 2013 2% stock dividend