Derivative Financial Instruments (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net	$ 7,400,000		$ 14,900,000
Notional Amount of Interest Rate Derivative Instruments Not Designated as Hedging Instruments	11,600,000		$ 19,900,000
Gain (Loss) on Interest Rate Fair Value Hedge Ineffectiveness	$ 5,000	$ 34,000