Loans (Troubled Debt Restructured Loans) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	$ 8,946
Existing troubled debt restructurings	3,174
Total Modifications	12,120	4,500
Commercial [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	147
Commercial [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	281
Real Estate Construction One-To- Four Family [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	470
Real Estate Construction One-To- Four Family [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	794
Real Estate Construction Other [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	2,748
Real Estate Term Owner Occupied [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	559
Real Estate Term Non-Owner Occupied [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	555
Real Estate Term Non-Owner Occupied [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	171
Real Estate Term Other [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	3,221
Accrual [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	6,081
Existing troubled debt restructurings	2,546
Total Modifications	8,627
Accrual [Member] | Commercial [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	147
Accrual [Member] | Commercial [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	176
Accrual [Member] | Real Estate Construction Other [Member] | Asset Quality Rating - Pass [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	2,748
Accrual [Member] | Real Estate Term Owner Occupied [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	559
Accrual [Member] | Real Estate Term Non-Owner Occupied [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	555
Accrual [Member] | Real Estate Term Other [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	1,896
Nonaccrual [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	2,865
Existing troubled debt restructurings	628
Total Modifications	3,493
Nonaccrual [Member] | Commercial [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	105
Nonaccrual [Member] | Real Estate Construction One-To- Four Family [Member] | Asset Quality Rating - Special Mention [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	470
Nonaccrual [Member] | Real Estate Construction One-To- Four Family [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	794
Nonaccrual [Member] | Real Estate Term Non-Owner Occupied [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	171
Nonaccrual [Member] | Real Estate Term Other [Member] | Asset Quality Rating - Substandard [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring recorded investment	$ 1,325