Income Taxes (Details 2) (USD $)	Dec. 29, 2013	Dec. 30, 2012
Income Taxes
Accrued liabilities	$ 10,584,000	$ 10,412,000
Accrued bonuses	4,153,000	5,365,000
Other assets and liabilities	10,209,000	11,492,000
Equity awards	5,974,000	5,377,000
Other	3,992,000	4,643,000
Foreign net operating losses	7,233,000	7,896,000
Valuation allowance on foreign net operating losses and foreign deferred tax assets	(7,682,000)	(8,240,000)
Total deferred tax assets	34,463,000	36,945,000
Deferred expenses	(5,655,000)	(4,581,000)
Accelerated depreciation	(16,838,000)	(15,966,000)
Goodwill	(13,953,000)	(12,269,000)
Other	(4,673,000)	(4,522,000)
Total deferred tax liabilities	(41,119,000)	(37,338,000)
Net deferred (liability) asset	(6,656,000)	(393,000)
Foreign tax net operating loss carryovers	$ 34,000,000	$ 32,500,000