Name:	cuo_DebtInstrumentCovenantConsolidatedLeverageRatio
Namespace Prefix:	cuo_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

Represents the minimum EBITDA (earnings before interest, taxes, depreciation and amortization) requirements as per the terms of the credit agreement's covenants.

No definition available.

Name:	cuo_DebtInstrumentCovenantEBITDARequirements
Namespace Prefix:	cuo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Represents the amount of excess availabilities for covenants to be tested for computation periods as regards to tangible net worth and balance sheet leverage ratio, as per the terms of the credit agreement's covenants.

No definition available.

Name:	cuo_DebtInstrumentCovenantExcessAvailabilityForCovenantsToBeTestedForComputationPeriodsAsRegardsToTangibleNetWorthAndBalanceSheetLeverageRatio
Namespace Prefix:	cuo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the ratio of the sum for such period of adjusted EBITDA, plus the aggregate fixed charge cure amount, if any, minus the sum of income taxes paid in cash and all unfinanced capital expenditures to the sum of interest expense and scheduled principal payments of the term debt under the terms of the credit agreement's covenants.

No definition available.

Name:	cuo_DebtInstrumentCovenantFixedChargeCoverageRatio
Namespace Prefix:	cuo_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

Represents the maximum annual capital expenditures that may be incurred as per the terms of the credit agreement's covenants.

No definition available.

Name:	cuo_DebtInstrumentCovenantMaximumAnnualCapitalExpenditures
Namespace Prefix:	cuo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the base amount that is used in the calculation of minimum tangible net worth threshold amount as per the terms of the credit agreement's covenants.

No definition available.

Name:	cuo_DebtInstrumentCovenantMinimumTangibleNetWorthThresholdBaseAmount
Namespace Prefix:	cuo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the percentage of the consolidated net income that is used in the calculation of minimum tangible net worth threshold amount as per the terms of the credit agreement's covenants.

No definition available.

Name:	cuo_DebtInstrumentCovenantMinimumTangibleNetWorthThresholdPercentageOfConsolidatedNetIncome
Namespace Prefix:	cuo_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The debt instrument covenant period after end of each fiscal year within which specified percentage of excess cash flow to be paid in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	cuo_DebtInstrumentCovenantPeriodAfterEndOfEachFiscalYearWithinWhichSpecifiedPercentageOfExcessCashFlowToBePaid
Namespace Prefix:	cuo_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Represents the amount of revolving outstandings for covenants to be tested for computation periods as regards to tangible net worth and balance sheet leverage ratio, as per the terms of the credit agreement's covenants.

No definition available.

Name:	cuo_DebtInstrumentCovenantRevolvingOutstandingsForCovenantsToBeTestedForComputationPeriodsAsRegardsToTangibleNetWorthAndBalanceSheetLeverageRatio
Namespace Prefix:	cuo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the specified percentage of excess cash flow to be paid after the end of each fiscal year, as per the terms of the credit agreement's covenants.

No definition available.

Name:	cuo_DebtInstrumentCovenantSpecifiedPercentageOfExcessCashFlowToBePaidAfterEndOfEachFiscalYear
Namespace Prefix:	cuo_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents borrowings under the credit facility as a percentage of eligible accounts receivable used as collateral to secure the financing.

No definition available.

Name:	cuo_LineOfCreditFacilityBorrowingCapacityAsPercentageOfEligibleAccountsReceivable
Namespace Prefix:	cuo_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents borrowings under the credit facility as a percentage of eligible inventories used as collateral to secure the financing.

No definition available.

Name:	cuo_LineOfCreditFacilityBorrowingCapacityAsPercentageOfEligibleInventories
Namespace Prefix:	cuo_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

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

No definition available.

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

No definition available.

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

Face (par) amount of debt instrument at time of issuance.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

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

- Details

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

The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for financing purchases of goods acquired for inventory or imminent delivery to a customer.

No definition available.

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

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.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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

The cash outflow associated with extending a long-term loan to a related party. Alternate caption: Payments for Advances to Affiliates.

No definition available.