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	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	$ 5,647	$ 5,306	$ 4,976	$ 6,260	$ 7,617	$ 7,210
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment	713		365
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	4,413		4,431
Balance, Loans Receivable	376,423		348,063
Loans Receivable, Individually Evaluated for Impairment	15,233		18,522
Loans Receivable, Collectively Evaluated for Impairment	361,190		329,541
Commercial And Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	249	275	271	430	305	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	249		244
Balance, Loans Receivable	18,987		16,158
Loans Receivable, Individually Evaluated for Impairment			27
Loans Receivable, Collectively Evaluated for Impairment	18,987		16,131
Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	400	401	223	170	582	294
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment	67		42
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	333		181
Balance, Loans Receivable	8,831		7,004
Loans Receivable, Individually Evaluated for Impairment	387		2,462
Loans Receivable, Collectively Evaluated for Impairment	8,444		4,542
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	3,472	3,452	3,395	4,547	5,186	4,833
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment	457		230
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	3,015		3,165
Balance, Loans Receivable	245,761		225,345
Loans Receivable, Individually Evaluated for Impairment	11,369		12,682
Loans Receivable, Collectively Evaluated for Impairment	234,392		212,663
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	990	899	869	1,055	976	987
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment	189		66
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	801		803
Balance, Loans Receivable	101,620		98,301
Loans Receivable, Individually Evaluated for Impairment	3,477		3,351
Loans Receivable, Collectively Evaluated for Impairment	98,143		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	1,224		1,255
Loans Receivable, Collectively Evaluated for Impairment	1,224		1,255
Unallocated Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	$ 521	$ 267	$ 180	$ 47	$ 537	$ 783