Defined Benefit Plan (Details Textual) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Defined Benefit Plan (Textual) [Abstract]
Employer contributions	$ 182	$ 178	$ 553	$ 539
Additional employer contributions, expected to be paid during the remainder of fiscal year			$ 152