| Document And Entity Information | Mar. 26, 2024 |
| Document Information [Line Items] | |
| Entity, Registrant Name | OPTICAL CABLE CORPORATION |
| Document, Type | 8-K |
| Document, Period End Date | Mar. 26, 2024 |
| Entity, Incorporation, State or Country Code | VA |
| Entity, File Number | 000-27022 |
| Entity, Tax Identification Number | 54-1237042 |
| Entity, Address, Address Line One | 5290 Concourse Drive |
| Entity, Address, City or Town | Roanoke |
| Entity, Address, State or Province | VA |
| Entity, Address, Postal Zip Code | 24019 |
| City Area Code | 540 |
| Local Phone Number | 265-0690 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | OCC |
| Security Exchange Name | NASDAQ |
| Entity, Emerging Growth Company | false |
| Amendment Flag | false |
| Entity, Central Index Key | 0001000230 |
