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Note 8 - Leases (Details Textual) |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Apr. 30, 2015 ft² | Sep. 15, 2009 ft² | Aug. 31, 2008 ft² | Oct. 31, 2016 ft² | Oct. 31, 2016 USD ($) ft² | Oct. 31, 2015 USD ($) | Oct. 31, 2014 USD ($) | May 19, 2011 ft²
Operating Leases, Rent Expense, Net | $ |  |  |  |  | $ 391,116 | $ 479,937 | $ 425,084 |
Operating Lease for Office, Manufacturing and Warehouse Space in Plano, Texas [Member] |  |  |  |  |  |  |  |
Area of Real Estate Property |  | 21,000 |  | 34,000 | 34,000 |  |  |
Lessee Leasing Arrangements, Operating Leases, Term of Contract |  | 5 years |  |  |  |  |  |
Additional Area of Real Estate Property |  |  |  |  |  |  |  | 13,000
Operating Lease for Office and Manufacturing Space in Coppell, Texas [Member] | Centric Solutions LLC [Member] |  |  |  |  |  |  |  |
Area of Real Estate Property |  |  | 23,000 |  |  |  |  |
Lessee Leasing Arrangements, Operating Leases, Term of Contract |  |  | 7 years |  |  |  |  |
Operating Lease for Warehouse Space in Roanoke, Virginia [Member] |  |  |  |  |  |  |  |
Area of Real Estate Property | 36,000 |  |  |  |  |  |  |
Lessee Leasing Arrangements, Operating Leases, Term of Contract | 1 year |  |  |  |  |  |  |
Lease Term, Extension, Term |  |  |  | 1 year |  |  |  |
Lease Term, Extension, Remaining Number |  |  |  | 3 |  |  |  |

X
- Definition The additional area of a real estate property. + References No definition available. + Details
Name: | occ_AdditionalAreaOfRealEstateProperty
Namespace Prefix: | occ_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition The remaining number of available extensions to a lease term. + References No definition available. + Details
Name: | occ_LeaseTermExtensionRemainingNumber
Namespace Prefix: | occ_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the extension of a term lease by the additional years added. + References No definition available. + Details
Name: | occ_LeaseTermExtensionTerm
Namespace Prefix: | occ_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Area of a real estate property. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Term of the lessee's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
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X
- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Namespace Prefix: |
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X
- Details
Name: | dei_LegalEntityAxis=occ_CentricSolutionsLLCMember
Namespace Prefix: |
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X
- Details
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Namespace Prefix: |
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