Retirement Plans (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Compensation and Retirement Disclosure [Abstract]
Benefits paid			$ 662,000
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year			1,500,000
Service cost	304,000	67,000	325,000	134,000
Interest cost	293,000	284,000	586,000	568,000
Net amortization	29,000	134,000	59,000	269,000
Net periodic pension cost	$ 626,000	$ 485,000	$ 970,000	$ 971,000