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Note 16 - Contingencies (Details Textual) | Jan. 31, 2017 USD ($)
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Unlawful Actions by Hazelton and Roehrs Under the SPA [Member] |
Minimum Earn-out Amount | $ 470,665

X
- Definition Minimum earnout amount that would have been payable under the Stock Purchase Agreement. + References No definition available. + Details
Name: | occ_MinimumEarnoutAmount
Namespace Prefix: | occ_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_LitigationCaseAxis=occ_UnlawfulActionsByHazeltonAndRoehrsUnderTheSpaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |