Junior Subordinated Debentures (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Junior Subordinated Debentures [Abstract]
Common stock issued by trust owned	$ 7,200,000	$ 6,900,000
(Loss) gain on junior subordinated debentures carried at fair value	$ (2,203,000)	$ (2,197,000)	$ 4,980,000
Phase out period of trust preferred securities from Tier 1 to Tier 2 capital	10 years