Defined Benefit Plan (Details Textual) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Defined Benefit Plan (Textual) [Abstract]
Employer contributions	$ 0.1	$ 0.1	$ 0.5	$ 0.5
Additional employer contributions, expected to be paid during the remainder of fiscal year			$ 0.1