Loans and Allowance for Loan Losses - Troubled Debt Restructuring Loan Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014 contracts	Sep. 30, 2013 contracts	Sep. 30, 2014 contracts	Sep. 30, 2013 contracts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts	2	9	103	97
Recorded Investment	$ 174	$ 350	$ 8,418	$ 8,872
Unpaid Principal	267	397	11,782	11,584
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts	2	0	21	1
Recorded Investment	174	0	6,694	0
Unpaid Principal	267	0	9,092	170
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts	0		1
Recorded Investment	0		0
Unpaid Principal	0		170
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts	0	1	13	12
Recorded Investment	0	42	854	966
Unpaid Principal	0	46	958	1,052
Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts	0	5	28	27
Recorded Investment	0	277	659	882
Unpaid Principal	0	320	1,288	1,247
Indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts	0	3	39	38
Recorded Investment	0	31	147	227
Unpaid Principal	0	31	210	336
Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts	0	2	1	1
Recorded Investment	0	27	64	55
Unpaid Principal	$ 0	$ 27	$ 64	$ 55