Cover - USD ($)	12 Months Ended
	Sep. 30, 2020	Oct. 31, 2020	Mar. 31, 2020
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Sep. 30, 2020
Document Transition Report	false
Entity File Number	1-5978
Entity Registrant Name	SIFCO Industries, Inc.
Entity Incorporation, State or Country Code	OH
Entity Tax Identification Number	34-0553950
Entity Address, Address Line One	970 East 64th Street,
Entity Address, City or Town	Cleveland
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	44103
City Area Code	(216)
Local Phone Number	881-8600
Title of 12(b) Security	Common Shares
Trading Symbol	SIF
Security Exchange Name	NYSEAMER
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 6,614,854
Entity Common Stock, Shares Outstanding		5,916,123
Documents Incorporated by Reference	Portions of the definitive Proxy Statement for the Annual Meeting of Shareholders to be held on January 27, 2021 (Part III).
Entity Central Index Key	0000090168
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--09-30