The current ratio that must be kept under the covenant of the debt instrument.

No definition available.

Name:	occ_DebtInstrumentCovenantCurrentRatio
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Data Type:	xbrli:pureItemType
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- Definition

The total liabilities to tangible net worth ratio that must be maintained by the company according to the debt agreement.

+ References

No definition available.

+ Details

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Namespace Prefix:	occ_
Data Type:	xbrli:pureItemType
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Period Type:	instant

- Definition

The current ratio held by the company.

+ References

No definition available.

+ Details

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Namespace Prefix:	occ_
Data Type:	xbrli:pureItemType
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Period Type:	instant

- Definition

The ratio of total liabilities to tangible net worth of the company.

+ References

No definition available.

+ Details

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Namespace Prefix:	occ_
Data Type:	xbrli:pureItemType
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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Net increase or decrease in the carrying amount of the debt instrument for the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6036836-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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

- Details

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- Details

Name:	us-gaap_DebtInstrumentAxis=occ_RealEstateTermLoansMember
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- Details

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- Details

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Note 6 - Long-term Debt and Notes Payable to Bank (Details Textual) - Pinnacle Financial Partners [Member] - USD ($)			3 Months Ended
	Jan. 31, 2020	Jan. 22, 2020	Jan. 21, 2020	Oct. 31, 2019
Real Estate Term Loans [Member]
Debt Instrument, Increase (Decrease), Net, Total		$ (200,000)
Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 6,500,000
Debt Instrument, Covenant, Current Ratio	3.0
Debt Instrument, Current Ratio	2.1
Debt Instrument, Covenant, Total Liabilities To Tangible Net Worth Ratio	0.95
Debt Instrument, Total Liabilities To Tangible Net Worth Ratio	1.0
Long-term Line of Credit, Total	$ 5,700,000			$ 5,700,000
Line of Credit Facility, Remaining Borrowing Capacity	$ 850,000			$ 850,000
Revolving Credit Facility [Member] \| Prime Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	0.50%		0.25%
Debt Instrument, Interest Rate, Effective Percentage	5.25%
Virginia Real Estate Loan and North Carolina Real Estate Loan [Member]
Debt Instrument, Interest Rate, Stated Percentage	3.95%