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Document And Entity Information - USD ($)
 12 Months Ended
Oct. 31, 2022
Dec. 15, 2022
Apr. 30, 2022
Document Information [Line Items]      
Entity, Registrant Name OPTICAL CABLE CORPORATION    
Document, Type 10-K    
Document, Annual Report true    
Document, Transition Report false    
Document, Period End Date Oct. 31, 2022    
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    
Entity, Shell Company false    
Entity, Public Float     $ 22,184,335
Entity, Common Stock Shares, Outstanding   7,893,194  
Current Fiscal Year End Date --10-31    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2022    
Auditor Firm ID 423    
Auditor Location Roanoke, Virginia    
Auditor Name Brown, Edwards & Company, L.L.P.    
Documents Incorporated By Reference Text Block Portions of the Company’s Annual Report filed as Exhibit 13.1 to this report on Form 10-K are incorporated by reference in Part II of this Form 10-K Report: “Corporate Information,” “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” “Consolidated Financial Statements,” “Notes to Consolidated Financial Statements,” and “Report of Independent Registered Public Accounting Firm.” In addition, portions of the Company’s Proxy Statement for the 2023 Annual Meeting of Shareholders are incorporated by reference in Part III of this Form 10-K Report: “Election of Directors,” “Beneficial Ownership of Securities”, “Compensation of Executive Officers,” “Compensation of Directors,” “Delinquent Section 16(a) Reports” (if applicable), “Code of Ethics,” “Executive Compensation,” “Equity Compensation Plan Information,” “Certain Relationships and Related Transactions,” “Independent Registered Public Accounting Firm,” and “Audit Committee Pre-approval of Audit and Permissible Non-audit Services of Independent Registered Public Accounting Firm.”    
Amendment Flag false    
Entity Central Index Key 0001000230