Derivative and Hedging Activities (Details Textuals) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount of Foreign Currency Derivatives	$ 97,000,000	$ 105,000,000
Derivative and Hedging Activities (Textuals) [Abstract]
Investment securities and cash equivalents pledged as collateral	85,000,000	94,000,000
Deferred After Tax Loss	1,000,000	4,000,000
Net gain (loss) on mortgage derivatives	200,000	6,000,000
Capital market fees | Interest rate-related instruments - customer and mirror
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on free standing derivatives	$ (2,443,000)	$ (1,876,000)