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Document And Entity Information - USD ($)
 12 Months Ended
Oct. 31, 2023
Dec. 13, 2023
Apr. 30, 2023
Document Information [Line Items]      
Entity Registrant Name OPTICAL CABLE CORPORATION    
Document Type 10-K    
Document, Annual Report true    
Document Period End Date Oct. 31, 2023    
Current Fiscal Year End Date --10-31    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2023    
Document, Transition Report false    
Entity, File Number 0-27022    
Entity, Incorporation, State or Country Code VA    
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    
Title of 12(b) Security Common Stock, no par value    
Trading Symbol OCC    
Security Exchange Name NASDAQ    
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    
ICFR Auditor Attestation Flag false    
Document, Financial Statement Error Correction Flag false    
Entity Shell Company false    
Entity, Public Float     $ 25,396,122
Entity, Common Stock Shares, Outstanding   7,893,681  
Amendment Flag false    
Auditor Name Brown, Edwards & Company, L.L.P.    
Auditor Firm ID 423    
Auditor Location Roanoke, Virginia    
Entity Central Index Key 0001000230