Loans (Loan Portfolio Summarized By The Past Due Status) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	$ 5,213	$ 5,284
60 to 89 Days Past Due	2,084	2,439
>90 Days Past Due	9,310	7,098
Total Past Due	16,607	14,821
Current	689,209	693,315
Total	705,816	708,136	702,404
Loans Receivable > 90 Days and Accruing	1,159	771
Commercial and industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due		128
60 to 89 Days Past Due	66
>90 Days Past Due	353	342
Total Past Due	419	470
Current	51,055	48,534
Total	51,474	49,004	61,480
Loans Receivable > 90 Days and Accruing	11	1
Commercial real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	749	598
60 to 89 Days Past Due	170
>90 Days Past Due	5,120	4,478
Total Past Due	6,039	5,076
Current	234,901	237,943
Total	240,940	243,019	236,068
Loans Receivable > 90 Days and Accruing	178	6
Commercial real estate construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
>90 Days Past Due	854	854
Total Past Due	854	854
Current	18,325	18,300
Total	19,179	19,154	21,897
Residential mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	4,353	4,197
60 to 89 Days Past Due	1,695	2,425
>90 Days Past Due	2,889	1,381
Total Past Due	8,937	8,003
Current	317,789	320,833
Total	326,726	328,836	315,381
Loans Receivable > 90 Days and Accruing	876	721
Home equity lines of credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	87	353
60 to 89 Days Past Due	49	10
>90 Days Past Due	94	43
Total Past Due	230	406
Current	52,617	52,724
Total	52,847	53,130	52,042
Loans Receivable > 90 Days and Accruing	94	43
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	24	8
60 to 89 Days Past Due	104	4
Total Past Due	128	12
Current	14,522	14,981
Total	$ 14,650	$ 14,993	$ 15,536