Foreign Exchange Transaction Gains/Losses (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Foreign Exchange Transaction Gains/Losses [Abstract]
Foreign exchange transaction exchange gains (losses)	$ 359,000	$ (556,000)	$ 569,000	$ (381,000)