Securities (Gross Realized Gains (Losses) on Investments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Securities [Abstract]
Available-for-sale Securities, Gross Realized Gains		$ 316	$ 511	$ 484
Available-for-sale Securities, Gross Realized Losses			(4)	(13)
Available-for-sale Securities, Gross Realized Gain (Loss), Total		316	507	471
Held-to-maturity Securities, Sold Security, Realized Gain	7		7
Held-to-maturity Securities, Sold Security, Realized Loss		(50)		(118)
Held-to-maturity Securities, Sold Security, Realized Gain (Loss), Total	7	(50)	7	(118)
Gain (Loss) on Sale of Securities, Net, Total	$ 7	$ 266	$ 514	$ 353