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Note 4 - Property and Equipment, Net (Details Textual) (Manufacturing Equipment [Member], Fiber Optic Cable [Member], USD $) In Millions, unless otherwise specified	Oct. 31, 2014
Manufacturing Equipment [Member] | Fiber Optic Cable [Member]
Property, Plant and Equipment, Net [Abstract]
Other Commitment	$ 2.8us-gaap_OtherCommitment / us-gaap_OtherCommitmentsAxis = occ_ManufacturingEquipmentMember / us-gaap_ProductOrServiceAxis = occ_FiberOpticCableMember

X

- Definition

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

+ References

No definition available.

+ Details

Name:	us-gaap_OtherCommitment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentNetAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration