Allowance For Loan Losses And Credit Quality Of Financing Receivables (Allowances Of Loan Losses And Loans Receivable By Class Disaggregated) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	$ 5,655	$ 5,647	$ 4,976	$ 6,721	$ 6,260	$ 7,210
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment	434		365
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	4,510		4,431
Balance, Loans Receivable	392,687		348,063
Loans Receivable, Individually Evaluated for Impairment	14,018		18,522
Loans Receivable, Collectively Evaluated for Impairment	378,669		329,541
Commercial And Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	239	249	271	613	430	304
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment			27
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	239		244
Balance, Loans Receivable	17,999		16,158
Loans Receivable, Individually Evaluated for Impairment			27
Loans Receivable, Collectively Evaluated for Impairment	17,999		16,131
Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	397	400	223	179	170	294
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment	27		42
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	370		181
Balance, Loans Receivable	9,649		7,004
Loans Receivable, Individually Evaluated for Impairment	269		2,462
Loans Receivable, Collectively Evaluated for Impairment	9,380		4,542
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	3,426	3,472	3,395	4,438	4,547	4,833
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment	308		230
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	3,118		3,165
Balance, Loans Receivable	256,976		225,345
Loans Receivable, Individually Evaluated for Impairment	10,930		12,682
Loans Receivable, Collectively Evaluated for Impairment	246,046		212,663
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	867	990	869	1,182	1,055	987
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment	99		66
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	768		803
Balance, Loans Receivable	106,448		98,301
Loans Receivable, Individually Evaluated for Impairment	2,819		3,351
Loans Receivable, Collectively Evaluated for Impairment	103,629		94,950
Consumer And Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	15		38
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	15		38
Balance, Loans Receivable	1,615		1,255
Loans Receivable, Collectively Evaluated for Impairment	1,615		1,255
Unallocated Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	$ 711	$ 521	$ 180	$ 301	$ 47	$ 783