Lease Obligations (Details) (USD $)	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Leases [Abstract]
Rental expense under operating leases	$ 4,600,000	$ 3,700,000	$ 3,300,000
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2014	3,408,000
2015	2,933,000
2016	2,769,000
2017	2,469,000
2018	2,440,000
Thereafter	21,166,000
Total future minimum lease commitments	$ 35,185,000