Commitments And Contingencies Litigation (Details) - USD ($) $ in Thousands		12 Months Ended
	Jul. 29, 2016	Jan. 01, 2017
Loss Contingencies [Line Items]
Litigation Settlement, Amount (Deprecated 2017-01-31)	$ 2,000
Litigation Settlement, Expense		$ 1,850
Other Operating Income (Expense) [Member]
Loss Contingencies [Line Items]
Litigation Settlement, Amount (Deprecated 2017-01-31)	$ 1,900