Pension Plan (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Pension Plan [Abstract]
Highest consecutive years of employee compensation used to compute benefit			3 years
Years of employment used in benefit computation			10 years
Unfunded pension plan obligations	$ 14,300,000		$ 14,300,000		$ 14,500,000
Net Pension Cost [Abstract]
Service cost	15,000	19,000	45,000	56,000
Interest cost	155,000	133,000	466,000	399,000
Amortization of prior service cost	22,000	22,000	66,000	67,000
Amortization of actuarial loss	32,000	122,000	96,000	367,000
Net periodic benefit cost	$ 224,000	$ 296,000	$ 673,000	$ 889,000