Allowance For Credit Losses (Age Analysis of Past Due Loans Receivables) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 to 59 Days Past Due	$ 1,017	$ 1,139
60 to 89 Days Past Due	319	54
Greater than 90 Days	8,035	4,851
Total Past Due	9,371	6,044
Current	387,127	397,640
Total Loans Receivables	396,498	403,684
Loans Receivable >90 Days and Accruing	869	210
Residential mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 to 59 Days Past Due	692	692
60 to 89 Days Past Due	319
Greater than 90 Days	2,256	1,873
Total Past Due	3,267	2,565
Current	22,568	23,896
Total Loans Receivables	25,835	26,461
Loans Receivable >90 Days and Accruing	60
Commercial mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 to 59 Days Past Due	68	257
Greater than 90 Days	3,514	2,324
Total Past Due	3,582	2,581
Current	230,620	229,716
Total Loans Receivables	234,202	232,297
Loans Receivable >90 Days and Accruing	710	210
Commercial term [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
60 to 89 Days Past Due		54
Greater than 90 Days		200
Total Past Due		254
Current	81,888	76,048
Total Loans Receivables	81,888	76,302
Commercial construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater than 90 Days	2,031	312
Total Past Due	2,031	312
Current	10,216	24,506
Total Loans Receivables	12,247	24,818
Lease financing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater than 90 Days	28	61
Total Past Due	28	61
Current	39	130
Total Loans Receivables	67	191
Consumer: Home equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 to 59 Days Past Due	162	175
Greater than 90 Days	152	60
Total Past Due	314	235
Current	35,008	35,807
Total Loans Receivables	35,322	36,042
Loans Receivable >90 Days and Accruing	92
Consumer: Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 to 59 Days Past Due	95	15
Greater than 90 Days	54	21
Total Past Due	149	36
Current	6,788	7,537
Total Loans Receivables	6,937	7,573
Loans Receivable >90 Days and Accruing	$ 7