Securities (Narrative) (Details) (USD $)	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Schedule Of Available-For-Sale And Held-To-Maturity [Line Items]
Available for sale securities carrying value pledged to secure public deposits	$ 26,500,000		$ 21,500,000
Gains on sales of securities available for sales	214,000	269,000
Gross losses on sales of securities avaiable for sale	20,000
Fair value of available-for-sale securities	115,508,000		96,361,000
Unrealized loss of available-for-sale securities	341,000		529,000
Fair value of held-to-maturity securities	5,316,000		4,345,000
State And Political Subdivisions [Member]
Schedule Of Available-For-Sale And Held-To-Maturity [Line Items]
Number of securities with unrealized losses from state and political subdivisions investment	3
Fair value of available-for-sale securities	27,969,000		20,570,000
Unrealized loss of available-for-sale securities	52,000		19,000
Fair value of held-to-maturity securities	5,316,000		4,345,000
Unrealized loss of held-to-maturity securites	21,000
Mortgage- Backed Securities [Member]
Schedule Of Available-For-Sale And Held-To-Maturity [Line Items]
Number mortgaged-backed securities with unrealized losses	13
Fair value of available-for-sale securities	26,900,000
Unrealized loss of available-for-sale securities	260,000
More Sensitive To Changes In Market Interest Retes [Member] \| State And Political Subdivisions [Member]
Schedule Of Available-For-Sale And Held-To-Maturity [Line Items]
Number of securities with unrealized losses from state and political subdivisions investment	10
Number of securities with unrealized losses from state and political subdivisions maturity minimum number of years	10 years
Fair value of available-for-sale securities	5,100,000
Unrealized loss of available-for-sale securities	52,000
Fair value of held-to-maturity securities	1,400,000
Unrealized loss of held-to-maturity securites	21,000
Adversely Impacted By The Effects Of The Current Economic Environment [Member]
Schedule Of Available-For-Sale And Held-To-Maturity [Line Items]
Number equity securities with unrealized losses	3
Unrealized loss of available-for-sale securities	29,000
Fair value of equity securities	$ 328,000

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