Derivative Instruments and Hedging Activities (Details 1) (Not Designated as Hedging Instrument [Member], Floating interest rate swaps [Member], USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Not Designated as Hedging Instrument [Member] | Floating interest rate swaps [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Amount:	$ 13,816	$ 14,323
Receive fixed rate (average):	2.00%	2.00%
Pay variable rate (average):	0.16%	0.17%
Maturity, Lower maturity range	2015-03-31	2015-03-31
Maturity, Higher maturity range	2021-10-31	2021-10-31
Derivative, Remaining Maturity	2 years 2 months 12 days	2 years 10 months 24 days
Unrealized fair value gain (loss)	$ 193	$ 276