| Cover | Apr. 22, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Apr. 22, 2022 |
| Current Fiscal Year End Date | --12-31 |
| Entity File Number | 001-07109 |
| 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 | 14059-0300 |
| City Area Code | 716 |
| Local Phone Number | 655-5990 |
| Written Communications | false |
| Soliciting Material | true |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common stock |
| Trading Symbol | SVT |
| Security Exchange Name | NYSEAMER |
| Entity Emerging Growth Company | false |
