Income Taxes (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012
Deferred tax assets:
Reserves and accruals	$ 10,592	$ 7,682
Deferred revenue	1,614	1,714
Shared based compensation	3,789	3,129
Tax credit carry-forwards	6,591	1,510
Net operating losses	10,220	10,830
Depreciation & amortization	3,241	3,273
Other	966	945
Total deferred tax assets	37,013	29,083
Less: Valuation allowance	(11,665)	(10,229)
Total deferred tax assets net of valuation allowance	25,348	18,854
Deferred tax liabilities:
Depreciation & amortization	(5,567)	(5,797)
Other	(926)	(793)
Total deferred tax liabilities	(6,493)	(6,590)
Net deferred tax assets	$ 18,855	$ 12,264