Allowance For Loan Losses And Credit Quality Of Financing Receivables (Allowances Of Loan Losses And Loans Receivable By Class Disaggregated) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	$ 5,641	$ 5,752	$ 5,641	$ 5,709	$ 5,854	$ 5,421
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment	395		288
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	4,553		4,739
Balance, Loans Receivable	501,619		472,461
Loans Receivable, Individually Evaluated for Impairment	7,245		7,513
Loans Receivable, Collectively Evaluated for Impairment	494,374		464,948
Commercial And Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	$ 83	86	231	276	257	222
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment			51
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	$ 83		180
Balance, Loans Receivable	17,842		20,549
Loans Receivable, Individually Evaluated for Impairment	20		94
Loans Receivable, Collectively Evaluated for Impairment	17,822		20,455
Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	$ 220	277	$ 383	301	354	308
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	$ 220		$ 383
Balance, Loans Receivable	$ 10,206		$ 12,379
Loans Receivable, Individually Evaluated for Impairment
Loans Receivable, Collectively Evaluated for Impairment	$ 10,206		$ 12,379
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	3,631	3,613	3,491	3,399	3,750	3,399
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment	117		136
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	3,514		3,355
Balance, Loans Receivable	347,095		326,370
Loans Receivable, Individually Evaluated for Impairment	5,194		5,105
Loans Receivable, Collectively Evaluated for Impairment	341,901		321,265
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	928	898	903	819	837	941
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment	205		101
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	723		802
Balance, Loans Receivable	125,159		111,498
Loans Receivable, Individually Evaluated for Impairment	1,893		2,314
Loans Receivable, Collectively Evaluated for Impairment	123,266		109,184
Consumer And Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	86	86	$ 19	26	13	16
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment	73
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	13		$ 19
Balance, Loans Receivable	1,317		$ 1,665
Loans Receivable, Individually Evaluated for Impairment	138
Loans Receivable, Collectively Evaluated for Impairment	1,179		$ 1,665
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	$ 693	$ 792	$ 614	$ 888	$ 643	$ 535
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment
Balance, Loans Receivable
Loans Receivable, Individually Evaluated for Impairment
Loans Receivable, Collectively Evaluated for Impairment