Short-Term Borrowings (Short Term Borrowing) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Short-term Borrowings
Short-term borrowings	$ 113,590	$ 47,769
Interest on short-term borrowings	114	74	103
Retail Repurchase Agreements
Short-term Borrowings
Short-term borrowings	42,590	32,769	43,143
Average balance	37,077	37,386	41,542
Highest month-end balance	46,850	44,905	49,162
Interest on short-term borrowings	58	57	98
Weighted Average Interest Rate, End of Year	0.16%	0.15%	0.16%
Weighted Average Interest Rate, During the Year	0.16%	0.15%	0.24%
FHLB Advances
Short-term Borrowings
Short-term borrowings	71,000	15,000	8,500
Average balance	44,127	13,240	5,525
Highest month-end balance	92,500	39,900	21,900
Interest on short-term borrowings	55	17	5
Weighted Average Interest Rate, End of Year	0.14%	0.15%	0.14%
Weighted Average Interest Rate, During the Year	0.12%	0.12%	0.08%
Other Short-Term Borrowings
Short-term Borrowings
Short-term borrowings	0	0	0
Average balance	90	15	47
Highest month-end balance	0	0	0
Interest on short-term borrowings	$ 1	$ 0	$ 0
Weighted Average Interest Rate, End of Year	0.00%	0.00%	0.00%
Weighted Average Interest Rate, During the Year	0.74%	0.74%	0.74%