Income Taxes Unrecognized Tax Benefits (Details) (USD $)	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Income Taxes [Abstract]
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	$ 20,000	$ (221,000)	$ 247,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	122,000	72,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	200,000	500,000
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized Tax Benefits Beginning of Period	425,000	1,354,000	1,375,000
Increases related to prior-year tax positions	0	355,000	621,000
Decreases related to prior-year tax positions	(230,000)	0	(572,000)
Settlements with taxing authorities	0	(1,506,000)	(138,000)
Lapse of statute of limitations	0	(70,000)	0
Increases related to current-year tax positions	18,000	292,000	68,000
Unrecognized Tax Benefits End of Period	$ 213,000	$ 425,000	$ 1,354,000