Derivative and Hedging Activities - Gains and Losses on Derivatives (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Derivatives Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	$ 237	$ 3
Derivatives Not Designated as Hedging Instrument [Member] | Interest Rate Products [Member] | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	238	(3)
Derivatives Not Designated as Hedging Instrument [Member] | Credit Risk Contract [Member] | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	(1)	6
Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	(122)	0
Designated as Hedging Instrument [Member] | Hedge Counterparty [Member] | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	$ (122)	$ 0