| Cover | Mar. 16, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Mar. 16, 2021 |
| Entity File Number | 001-9232 |
| Entity Registrant Name | VOLT INFORMATION SCIENCES, INC. |
| Entity Central Index Key | 0000103872 |
| Entity Tax Identification Number | 13-5658129 |
| Entity Incorporation, State or Country Code | NY |
| Entity Address, Address Line One | 2401 N. Glassell Street |
| Entity Address, City or Town | Orange |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 92865 |
| City Area Code | (714) |
| Local Phone Number | 921-8800 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $0.10 |
| Trading Symbol | VOLT |
| Security Exchange Name | NYSEAMER |
| Entity Emerging Growth Company | false |
