Leases (Details) (USD $)	12 Months Ended
	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Capitalized Leases
Capital leases, 2015	$ 108,000
Capital leases, 2016	0
Capital leases, 2017	0
Capital leases, 2018	0
Capital leases, 2019	0
Thereafter	0
Total minimum lease payments	108,000
Less: amount representing interest	3,000
Present value of net minimum lease payments, including current maturities of $105	105,000
Current maturities	0
Operating Leases
Operating leases, 2015	28,811,000
Operating leases, 2016	23,855,000
Operating leases, 2017	12,768,000
Operating leases, 2018	9,038,000
Operating leases, 2019	6,175,000
Thereafter	11,045,000
Total minimum lease payments	91,692,000
Capitalized Leases, Assets
Office equipment	570,000	570,000
Less: allowances for depreciation	460,000	346,000
Capital leased assets, net	110,000	224,000
Rent expense	$ 48,000,000	$ 41,500,000	$ 37,600,000