Credit Quality and Nonperforming Assets (Troubled Debt Restructurings, by Type of Loan Modification) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment	$ 359	$ 252
Consumer loans [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment		2
Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment	43	114
Real Estate Loans [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment	316	136
Real Estate Loans [Member] | 1-4 Family - closed end [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment		13
Real Estate Loans [Member] | Equity Lines [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment	205
Real Estate Loans [Member] | Commercial real estate - owner occupied [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment		123
Real Estate Loans [Member] | Other construction/Land [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment	111
Rate Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Rate Modification [Member] | Consumer loans [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Rate Modification [Member] | Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Rate Modification [Member] | Real Estate Loans [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Rate Modification [Member] | Real Estate Loans [Member] | 1-4 Family - closed end [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Rate Modification [Member] | Real Estate Loans [Member] | Equity Lines [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Rate Modification [Member] | Real Estate Loans [Member] | Commercial real estate - owner occupied [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Rate Modification [Member] | Real Estate Loans [Member] | Other construction/Land [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Term Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment	359	248
Term Modification [Member] | Consumer loans [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment		2
Term Modification [Member] | Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment	43	110
Term Modification [Member] | Real Estate Loans [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment	316	136
Term Modification [Member] | Real Estate Loans [Member] | 1-4 Family - closed end [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment		13
Term Modification [Member] | Real Estate Loans [Member] | Equity Lines [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment	205
Term Modification [Member] | Real Estate Loans [Member] | Commercial real estate - owner occupied [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment		123
Term Modification [Member] | Real Estate Loans [Member] | Other construction/Land [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment	111
Rate & Term Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment		4
Rate & Term Modification [Member] | Consumer loans [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Rate & Term Modification [Member] | Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment		4
Rate & Term Modification [Member] | Real Estate Loans [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Rate & Term Modification [Member] | Real Estate Loans [Member] | 1-4 Family - closed end [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Rate & Term Modification [Member] | Real Estate Loans [Member] | Equity Lines [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Rate & Term Modification [Member] | Real Estate Loans [Member] | Commercial real estate - owner occupied [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Rate & Term Modification [Member] | Real Estate Loans [Member] | Other construction/Land [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Term & Interest Only Modification [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Term & Interest Only Modification [Member] | Consumer loans [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Term & Interest Only Modification [Member] | Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Term & Interest Only Modification [Member] | Real Estate Loans [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Term & Interest Only Modification [Member] | Real Estate Loans [Member] | 1-4 Family - closed end [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Term & Interest Only Modification [Member] | Real Estate Loans [Member] | Equity Lines [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Term & Interest Only Modification [Member] | Real Estate Loans [Member] | Commercial real estate - owner occupied [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment
Term & Interest Only Modification [Member] | Real Estate Loans [Member] | Other construction/Land [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding, Recorded Investment