Derivative Instruments; Fair Value (Details 2) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives not Designated as Hedging Instruments under Statement 133	Interest Rate Contracts
Location of gain Recognized in Income on Derivative	Interest Expense	Interest Expense
Amount of gain Recognized in Income on Derivative	$ 1,000	$ (5,000)
Interest on fixed/variable rate variances	$ 21,000	$ 19,000