| Schedule of net sales by major product category |  |  
		
			                                                                                                                                                                                    
		 
			
				| 
						  | 
						  | 
						Fiscal Year Ended | 
						  |  
				| 
						  | 
						  | 
						December 25, 2014 | 
						  | 
						December 31, 2015 | 
						  | 
						December 29, 2016 | 
						  |  
				| 
						Product Category  | 
						  | 
						Net Sales | 
						  | 
						% ofNet Sales
 | 
						  | 
						Net Sales | 
						  | 
						% ofNet Sales
 | 
						  | 
						Net Sales | 
						  | 
						% ofNet Sales
 | 
						  |  
				| 
						Tile | 
						  | 
						$ | 174,271 | 
						  | 
						  | 30 | 
						% | 
						$ | 244,902 | 
						  | 
						  | 31 | 
						% | 
						$ | 325,433 | 
						  | 
						  | 31 | 
						% |  
				| 
						Decorative Accessories | 
						  | 
						  | 98,991 | 
						  | 
						  | 16 | 
						  | 
						  | 138,442 | 
						  | 
						  | 18 | 
						  | 
						  | 188,371 | 
						  | 
						  | 18 | 
						  |  
				| 
						Accessories (Installation Materials and Tools) | 
						  | 
						  | 91,122 | 
						  | 
						  | 16 | 
						  | 
						  | 124,162 | 
						  | 
						  | 16 | 
						  | 
						  | 165,330 | 
						  | 
						  | 16 | 
						  |  
				| 
						Wood | 
						  | 
						  | 90,752 | 
						  | 
						  | 16 | 
						  | 
						  | 116,999 | 
						  | 
						  | 15 | 
						  | 
						  | 142,751 | 
						  | 
						  | 14 | 
						  |  
				| 
						Laminate / Luxury Vinyl Plank | 
						  | 
						  | 61,817 | 
						  | 
						  | 11 | 
						  | 
						  | 77,586 | 
						  | 
						  | 10 | 
						  | 
						  | 131,447 | 
						  | 
						  | 12 | 
						  |  
				| 
						Natural Stone | 
						  | 
						  | 65,008 | 
						  | 
						  | 11 | 
						  | 
						  | 78,294 | 
						  | 
						  | 10 | 
						  | 
						  | 90,866 | 
						  | 
						  | 9 | 
						  |  
				| 
						Delivery and Other | 
						  | 
						  | 2,627 | 
						  | 
						  | 
						— | 
						  | 
						  | 3,627 | 
						  | 
						  | 
						— | 
						  | 
						  | 6,561 | 
						  | 
						  | 
						— | 
						  |  
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				| 
						Total | 
						  | 
						$ | 584,588 | 
						  | 
						  | 100 | 
						% | 
						$ | 784,012 | 
						  | 
						  | 100 | 
						% | 
						$ | 1,050,759 | 
						  | 
						  | 100 | 
						% |  
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