Derivative (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Loss Recognized in Other Comprehensive Income (Loss), Effective Portion	$ 23	$ (23)	$ (57)	$ (69)
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion	$ (31)	$ (29)	$ (100)	$ (26)