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Note 11 - Business And Credit Concentrations, Major Customers And Geographic Information (Details Textual) (USD $)	3 Months Ended								12 Months Ended
	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Concentration Risks, Types, No Concentration Percentage [Abstract]
Revenue, Net	$ 25,247,943us-gaap_SalesRevenueNet	$ 21,004,130us-gaap_SalesRevenueNet	$ 20,190,729us-gaap_SalesRevenueNet	$ 16,534,930us-gaap_SalesRevenueNet	$ 19,244,066us-gaap_SalesRevenueNet	$ 19,601,919us-gaap_SalesRevenueNet	$ 19,124,600us-gaap_SalesRevenueNet	$ 17,295,453us-gaap_SalesRevenueNet	$ 82,977,732us-gaap_SalesRevenueNet	$ 75,266,038us-gaap_SalesRevenueNet	$ 83,523,330us-gaap_SalesRevenueNet
Concentration Risk, Number of Customers									1occ_ConcentrationRiskNumberOfCustomers
Entity-Wide Payable, Major Customer Percentage									13.90%occ_EntityWidePayableMajorCustomerPercentage
Operating Income (Loss)									1,332,295us-gaap_OperatingIncomeLoss	767,121us-gaap_OperatingIncomeLoss	4,417,811us-gaap_OperatingIncomeLoss
Assets	50,038,614us-gaap_Assets				45,414,899us-gaap_Assets				50,038,614us-gaap_Assets	45,414,899us-gaap_Assets
UNITED STATES
Concentration Risks, Types, No Concentration Percentage [Abstract]
Revenue, Net									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
Centric Solutions Limited Liability Company [Member]
Concentration Risks, Types, No Concentration Percentage [Abstract]
Revenue, Net									1,500,000us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = occ_CentricSolutionsLimitedLiabilityCompanyMember	1,400,000us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = occ_CentricSolutionsLimitedLiabilityCompanyMember	1,800,000us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = occ_CentricSolutionsLimitedLiabilityCompanyMember
Operating Income (Loss)									(256,000)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = occ_CentricSolutionsLimitedLiabilityCompanyMember	(124,000)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = occ_CentricSolutionsLimitedLiabilityCompanyMember	(515,000)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = occ_CentricSolutionsLimitedLiabilityCompanyMember
Assets	220,000us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = occ_CentricSolutionsLimitedLiabilityCompanyMember				329,000us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = occ_CentricSolutionsLimitedLiabilityCompanyMember				220,000us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = occ_CentricSolutionsLimitedLiabilityCompanyMember	329,000us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = occ_CentricSolutionsLimitedLiabilityCompanyMember
Customer One [Member]
Concentration Risks, Types, No Concentration Percentage [Abstract]
Revenue, Net									$ 14,000,000us-gaap_SalesRevenueNet / us-gaap_MajorCustomersAxis = occ_CustomerOneMember		$ 10,600,000us-gaap_SalesRevenueNet / us-gaap_MajorCustomersAxis = occ_CustomerOneMember
Sales Revenue, Net [Member] | Credit Concentration Risk [Member]
Concentration Risks, Types, No Concentration Percentage [Abstract]
Concentration Risk, Number of Customers											1occ_ConcentrationRiskNumberOfCustomers / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CreditConcentrationRiskMember
Sales Revenue, Net [Member] | Customer Concentration Risk [Member]
Concentration Risks, Types, No Concentration Percentage [Abstract]
Concentration Risk, Number of Customers									1occ_ConcentrationRiskNumberOfCustomers / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customer One [Member]
Concentration Risks, Types, No Concentration Percentage [Abstract]
Concentration Risk, Percentage									16.80%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember / us-gaap_MajorCustomersAxis = occ_CustomerOneMember		12.70%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember / us-gaap_MajorCustomersAxis = occ_CustomerOneMember
Sales Revenue, Net [Member] | Geographic Concentration Risk [Member] | UNITED STATES
Concentration Risks, Types, No Concentration Percentage [Abstract]
Concentration Risk, Percentage									79.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_GeographicConcentrationRiskMember / us-gaap_StatementGeographicalAxis = country_US	70.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_GeographicConcentrationRiskMember / us-gaap_StatementGeographicalAxis = country_US	74.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_GeographicConcentrationRiskMember / us-gaap_StatementGeographicalAxis = country_US
Sales Revenue, Net [Member] | Geographic Concentration Risk [Member] | International Countries [Member]
Concentration Risks, Types, No Concentration Percentage [Abstract]
Concentration Risk, Percentage									21.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_GeographicConcentrationRiskMember / us-gaap_StatementGeographicalAxis = occ_InternationalCountriesMember	30.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_GeographicConcentrationRiskMember / us-gaap_StatementGeographicalAxis = occ_InternationalCountriesMember	26.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_GeographicConcentrationRiskMember / us-gaap_StatementGeographicalAxis = occ_InternationalCountriesMember

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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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.

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