Document and Entity Information (USD $)	12 Months Ended
	Dec. 29, 2012	Jun. 30, 2012	Mar. 15, 2013 Class A Common Stock	Mar. 15, 2013 Class B Common Stock
Entity Registrant Name	SUPREME INDUSTRIES INC
Entity Central Index Key	0000350846
Document Type	10-K
Document Period End Date	Dec. 29, 2012
Amendment Flag	false
Current Fiscal Year End Date	--12-29
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float		$ 46,948,258
Entity Common Stock, Shares Outstanding			13,557,749	1,716,937
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	FY