Stock Compensation Plans (Restricted Stock Activity) (Details) (Restricted Stock [Member], USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested shares at beginning of year	117,118	93,482	84,134
Shares granted	44,556	70,281	50,618
Shares canceled	(1,802)	(790)	(431)
Shares vested	(55,456)	(45,855)	(40,839)
Unvested shares at end of year	104,416	117,118	93,482
Weighted average fair value at grant date	$ 26.04	$ 25.83	$ 23.06
Unrecognized compensation expense at end of year	$ 1,199	$ 1,428	$ 932
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Nonvested	2,943	2,824	2,407
Intrinsic value, shares vested during the year	$ 1,363	$ 1,173	$ 934