Acquisition (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Sep. 30, 2013 Branch Office in Richfield, PA [Member]	Sep. 30, 2012 Branch Office in Richfield, PA [Member]	Sep. 30, 2013 Branch Office in Richfield, PA [Member]	Sep. 30, 2012 Branch Office in Richfield, PA [Member]	Dec. 31, 2006 Branch Office in Richfield, PA [Member]
Business Acquisition [Line Items]
Acquisition date								Sep. 08, 2006
Goodwill included in purchase price of the branch	$ 2,046,000		$ 2,046,000		$ 2,046,000					$ 2,046,000
Core deposit intangible included in purchase price of the branch										449,000
Core deposit intangible amortization period								10 years
Amortization of intangibles	12,000	12,000	34,000	34,000		12,000	12,000	34,000	34,000
Core deposit intangible accumulated amortization						319,000		319,000
Goodwill impairmment charge								$ 0	$ 0