Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2013	Feb. 28, 2014	Jun. 28, 2013
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 Well-Known Seasoned Issuer	No
Entity Common Stock Shares Outstanding		11,272,333
Entity Public Float			$ 139,459,119
Document Type	10-K
Document Period End Date	Dec. 31, 2013
Amendment Flag	false
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	FY