Note 5 - Property and Equipment, Net (Details) - Property, Plant and Equipment, at Cost (USD $) In Thousands, unless otherwise specified	Sep. 28, 2014	Dec. 29, 2013
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 41,526	$ 37,200
Less accumulated depreciation	(7,979)	(5,541)
Property and equipment, net	33,547	31,659
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	27,769	24,611
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	13,212	12,370
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 545	$ 219