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Document and Entity Information
 6 Months Ended
Jun. 30, 2012
Aug. 03, 2012
Document and Entity Information [Abstract]    
Entity Registrant Name MILLER INDUSTRIES INC /TN/  
Entity Central Index Key 0000924822  
Trading Symbol mlr  
Entity Current Reporting Status Yes  
Entity Voluntary Filers No  
Current Fiscal Year End Date --12-31  
Entity Filer Category Accelerated Filer  
Entity Common Stock Shares Outstanding   11,067,431
Document Type 10-Q  
Document Period End Date Jun. 30, 2012  
Amendment Flag false  
Document Fiscal Year Focus 2012  
Document Fiscal Period Focus Q2