Loans (Summary Of Loans Outstanding) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 733,212		$ 726,531
Allowance for loan losses	(9,450)	$ (9,210)	(9,111)	$ (9,519)	$ (9,745)	$ (9,702)
Net Loans	723,762		717,420
Change Amount	$ 6,681
Change %	0.90%
Allowance for loan losses, Change Amount	$ (339)
Allowance for loan losses, Change %	(3.70%)
Net Loans, Change Amount	$ 6,342
Net Loans, Change %	0.90%
Net unamortized deferred loan costs	$ 169		(76)
Loans pledged as collateral for borrowings and commitments from: FHLB	612,011		602,633
Loans pledged as collateral for borrowings and commitments from :Federal Reserve Bank	54,844		56,367
Total loans pledged as collateral	666,855		659,000
Residential Real Estate 1-4 Family Consumer First Liens [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	103,852		105,014
Change Amount	$ (1,162)
Change %	(1.10%)
Residential Real Estate 1-4 Family Consumer Junior Liens And Lines Of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 39,915		38,132
Change Amount	$ 1,783
Change %	4.70%
Residential Real Estate 1-4 Family Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 143,767		143,146
Change Amount	$ 621
Change %	0.40%
Residential Real Estate 1-4 Family Commercial first lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 60,438		56,300
Change Amount	$ 4,138
Change %	7.30%
Residential Real Estate 1-4 Family Commercial junior liens and lines of credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 5,637		5,663
Change Amount	$ (26)
Change %	(0.50%)
Residential Real Estate 1-4 Family Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 66,075		61,963
Change Amount	$ 4,112
Change %	6.60%
Residential Real Estate 1-4 Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 209,842		205,109
Change Amount	$ 4,733
Change %	2.30%
Residential Real Estate- Construction Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 1,736		1,627
Change Amount	$ 109
Change %	6.70%
Residential Real Estate- Construction Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 6,676		8,088
Change Amount	$ (1,412)
Change %	(17.50%)
Residential Real Estate - Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 8,412		9,715
Allowance for loan losses	(220)	(263)	(226)	(261)	(374)	(291)
Change Amount	$ (1,303)
Change %	(13.40%)
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 317,329		326,482
Allowance for loan losses	(5,686)	(5,600)	(5,417)	(5,412)	(5,509)	(5,571)
Change Amount	$ (9,153)
Change %	(2.80%)
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 192,224		179,071
Allowance for loan losses	(1,771)	(1,628)	(1,773)	(2,366)	(2,309)	(2,306)
Change Amount	$ 13,153
Change %	7.30%
Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 509,553		505,553
Change Amount	$ 4,000
Change %	0.80%
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 5,405		6,154
Allowance for loan losses	(121)	$ (125)	$ (136)	$ (135)	$ (144)	$ (148)
Change Amount	$ (749)
Change %	(12.20%)