Loans (Troubled Debt Restructurings Modified On Financing Receivables) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investments	$ 8,243	$ 2,682
Pre-Modification Outstanding Recorded Investments	8,255	2,694
Recorded Investment	6,715	1,496
Commercial real estate [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investments	5,225
Pre-Modification Outstanding Recorded Investments	5,225
Recorded Investment	5,099
Residential mortgage [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investments	336
Pre-Modification Outstanding Recorded Investments	336
Recorded Investment	321
Nonaccrual [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investments	3,330
Pre-Modification Outstanding Recorded Investments	3,342
Recorded Investment	1,900
Nonaccrual [Member] | Commercial real estate [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investments	1,304	656
Pre-Modification Outstanding Recorded Investments	1,304	656
Recorded Investment	953	412
Accrual [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investments	4,913
Pre-Modification Outstanding Recorded Investments	4,913
Recorded Investment	4,815
Accrual [Member] | Commercial real estate [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investments	4,577
Pre-Modification Outstanding Recorded Investments	4,577
Recorded Investment	4,494
Accrual [Member] | Residential mortgage [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investments	336
Pre-Modification Outstanding Recorded Investments	336
Recorded Investment	$ 321