XML 47 R1.htm IDEA: XBRL DOCUMENT v2.4.0.6
Document and Entity Information
 6 Months Ended
Jul. 01, 2012
Aug. 01, 2012
Class A Common Stock
Entity Registrant Name INTERFACE INC  
Entity Central Index Key 0000715787  
Document Type 10-Q  
Document Period End Date Jul. 01, 2012  
Amendment Flag false  
Document Fiscal Year Focus 2012  
Document Fiscal Period Focus Q2  
Current Fiscal Year End Date --12-30  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   65,967,061