Document and Entity Information Document - USD ($)	12 Months Ended
	Oct. 31, 2018	Dec. 18, 2018	Apr. 30, 2018
DEI [Abstract]
Entity Registrant Name	SHILOH INDUSTRIES INC
Entity Central Index Key	0000904979
Current Fiscal Year End Date	--10-31
Entity Filer Category	Accelerated Filer
Document Type	10-K
Document Period End Date	Oct. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		23,441,986
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 121,837,289