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Note 8 - Leases (Tables) | 12 Months Ended
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Oct. 31, 2022
Notes Tables |
Lessee, Lease Liability, Maturity [Table Text Block] |
Fiscal Year |  | Operating leases |  |  | Finance lease |
2023 |  | $ | 382,716 |  |  | $ | 42,868 |
2024 |  |  | 331,438 |  |  |  | 42,868 |
2025 |  |  | 55,023 |  |  |  | 42,868 |
2026 |  |  | — |  |  |  | 55,715 |
Total undiscounted lease payments |  |  | 769,177 |  |  |  | 184,319 |
Present value discount |  |  | (39,424 | ) |  |  | (17,684 | )
Total lease liability |  | $ | 729,753 |  |  | $ | 166,635 |

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- Definition Tabular disclosure of future payments for operating and finance lease obligations. + References No definition available. + Details
Name: | occ_LesseeLeaseLiabilityMaturityTableTextBlock
Namespace Prefix: | occ_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_TableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration