Loans (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Nonaccrual loans	$ 4,292,000	$ 4,531,000
Nonperforming loans minimum threshold for individual impairment evaluation	50,000
Recorded investment in loans considered to be impaired	11,611,000	13,093,000
Loans classified as troubled debt restructurings	9,900,000	12,100,000
Four Troubled Debt Restructurings [Member]
TDR's with a specific impairment amount, total recorded investment	1,300,000
Troubled debt restructurings, Total recorded investment impairment amount	$ 637,000