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Note 4 - Property and Equipment, Net (Details) - Property, Plant and Equipment, at Cost - USD ($)
$ in Thousands
Jun. 28, 2015
Dec. 28, 2014
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 35,421 $ 41,433
Less accumulated depreciation (7,575) (8,694)
Property and equipment, net 27,846 32,739
Building and Building Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 21,473 27,905
Furniture and Fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 13,652 13,445
Construction in Progress [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 296 $ 83