Document and Entity Information Document (USD $)	12 Months Ended
	Oct. 31, 2012	Dec. 20, 2012	Apr. 30, 2012
Entity Listings [Line Items]
Entity Registrant Name	SHILOH INDUSTRIES INC
Entity Central Index Key	0000904979
Current Fiscal Year End Date	--10-31
Entity Filer Category	Smaller Reporting Company
Document Type	10-K
Document Period End Date	Oct. 31, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		16,904,255
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 51,756,196