Goodwill and Intangible Assets - Schedule of Amortization Expense (Details) - USD ($)	12 Months Ended
	Jan. 27, 2017	Jan. 29, 2016	Jan. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Annual amortization expense	$ 0	$ 412,000	$ 2,630,000