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Note 11 - Business and Credit Concentrations, Major Customers and Geographic Information - Revenue Attributed to United States and All Other Countries (Details) (USD $)	12 Months Ended
	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Net sales	$ 82,977,732us-gaap_SalesRevenueNet	$ 75,266,038us-gaap_SalesRevenueNet	$ 83,523,330us-gaap_SalesRevenueNet
UNITED STATES
Net sales	65,457,787us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_US	52,931,288us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_US	62,010,259us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_US
Outside United States [Member]
Net sales	$ 17,519,945us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = occ_OutsideUnitedStatesMember	$ 22,334,750us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = occ_OutsideUnitedStatesMember	$ 21,513,071us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = occ_OutsideUnitedStatesMember

X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 225



-SubTopic 10



-Section S99



-Paragraph 2



-Subparagraph (SX 210.5-03.1)



-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688







Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Section 03



-Paragraph 1



-Article 5

+ Details

Name:	us-gaap_SalesRevenueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_StatementGeographicalAxis=country_US
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementGeographicalAxis=occ_OutsideUnitedStatesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: