Cover - USD ($)	12 Months Ended
	Dec. 31, 2021	Feb. 28, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K/A
Amendment Flag	false
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2021
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2021
Current Fiscal Year End Date	--12-31
Entity File Number	1-07109
Entity Registrant Name	SERVOTRONICS, INC.
Entity Central Index Key	0000089140
Entity Tax Identification Number	16-0837866
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	1110 Maple Street
Entity Address, City or Town	Elma
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	14059
City Area Code	716
Local Phone Number	655-5990
Title of 12(b) Security	Common Stock
Trading Symbol	SVT
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			$ 14,176,355
Entity Common Stock, Shares Outstanding		2,491,667
ICFR Auditor Attestation Flag	false
Auditor Name	FREED MAXICK CPAs, P.C.
Auditor Location	Buffalo, New York
Auditor Firm ID	317