Derivatives and Hedging Activities (Gains and Losses on Derivatives) (Details) (Derivatives not designated as a hedging instruments, USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	$ (64)
Other Income | Interest rate products
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	(65)
Other Income | Credit contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	$ 1