Retirement Plans (Details) (Pension Plans, Defined Benefit [Member], USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 68,000	$ 70,000
Expected return on assets	(83,000)	(93,000)
Amortization of actuarial net loss	22,000	11,000
Net periodic pension (benefit) cost	7,000	(12,000)
Company contributions	78,000	80,000
Anticipated company contributions	$ 500,000