Document And Entity Information
Apr. 15, 2020
Document Information [Line Items]  
Entity, Registrant Name OPTICAL CABLE CORPORATION
Document, Type 8-K
Document, Period End Date Apr. 15, 2020
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