XML 29 R35.htm IDEA: XBRL DOCUMENT v2.4.1.9

Debt (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Mar. 31, 2009
Debt, Long-term and Short-term, Combined Amount [Abstract]
Debt	$ 18,000,000us-gaap_LongTermDebt		$ 5,196,000us-gaap_LongTermDebt
Revolving Line of Credit	1,000,000us-gaap_LineOfCreditFacilityAmountOutstanding		2,768,000us-gaap_LineOfCreditFacilityAmountOutstanding
Less current portion	(5,714,000)us-gaap_DebtCurrent		(4,482,000)us-gaap_DebtCurrent
Long-term debt	12,286,000us-gaap_LongTermDebtNoncurrent		714,000us-gaap_LongTermDebtNoncurrent
Percent of subsidiary stock not security for financing	65.00%cmt_PercentOfSubsidiaryStockNotSecurityForFinancing
Document Fiscal Year Focus	2015
Capex Loan Swap Agreement [Member]
Debt, Long-term and Short-term, Combined Amount [Abstract]
Derivative, Fixed Interest Rate	2.295%us-gaap_DerivativeFixedInterestRate / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember
Derivative, Description of Variable Rate Basis	LIBOR
Description of Reclassification of Cash Flow Hedge Gain (Loss)	The pre-tax loss previously recognized in Accumulated Other Comprehensive Income, totaling $146,000 as of March 31, 2009, is being amortized as an increase to interest expense of approximately $2,000 per month, or $1,000 net of tax, over the remaining term of the interest rate swap agreement.
Derivative, Variable Interest Rate	0.15%us-gaap_DerivativeVariableInterestRate / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember
Interest rate swaps	26,000us-gaap_DerivativeLiabilities / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember		37,000us-gaap_DerivativeLiabilities / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember
Interest income (loss) for mark-to-market adjustment of swap fair value	11,000us-gaap_ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1 / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember	18,000us-gaap_ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1 / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember
Derivative, Notional Amount	2,000,000invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember		2,428,000invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember
Interest expense for settlements related to swaps	(11,000)us-gaap_GainLossOnComponentsExcludedFromAssessmentOfInterestRateFairValueHedgeEffectiveness / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember	(21,000)us-gaap_GainLossOnComponentsExcludedFromAssessmentOfInterestRateFairValueHedgeEffectiveness / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember
Capex Loan Swap Agreement [Member] | Accumulated Other-than-Temporary Impairment [Member]
Debt, Long-term and Short-term, Combined Amount [Abstract]
Pre-Tax Loss				146,000cmt_DerivativeSwapTypePreTaxLoss / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherThanTemporaryImpairmentMember
Amortization of Pre-Tax Loss to Interest Expense, Before Tax, Monthly	2,000cmt_DerivativeSwapTypeAmortizationofPreTaxLossInterestExpenseBeforeTaxMonthly / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherThanTemporaryImpairmentMember
Amortization of Pre-Tax Loss to Interest Expense, Net of Tax, Monthly	1,000cmt_DerivativeSwapTypeAmortizationofPreTaxLossInterestExpenseNetofTaxMonthly / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherThanTemporaryImpairmentMember
Revolving Credit Facility [Member]
Debt, Long-term and Short-term, Combined Amount [Abstract]
Revolving Line of Credit	1,000,000us-gaap_LineOfCreditFacilityAmountOutstanding / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember		2,768,000us-gaap_LineOfCreditFacilityAmountOutstanding / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember
Debt Instrument, Interest Rate, Stated Percentage	1.75%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember		1.75%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember
Maximum borrowing capacity	18,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember
Debt Instrument, Basis Spread on Variable Rate	1.60%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember
Term Loan [Member]
Debt, Long-term and Short-term, Combined Amount [Abstract]
Debt	15,000,000us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = cmt_TermLoanMember		0us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = cmt_TermLoanMember
Debt Instrument, Interest Rate, Stated Percentage	1.98%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = cmt_TermLoanMember
Proceeds from (Repayments of) Debt	15,500,000us-gaap_ProceedsFromRepaymentsOfDebt / us-gaap_DebtInstrumentAxis = cmt_TermLoanMember	0us-gaap_ProceedsFromRepaymentsOfDebt / us-gaap_DebtInstrumentAxis = cmt_TermLoanMember
Repayments of Short-term Debt	500,000us-gaap_RepaymentsOfShortTermDebt / us-gaap_DebtInstrumentAxis = cmt_TermLoanMember	0us-gaap_RepaymentsOfShortTermDebt / us-gaap_DebtInstrumentAxis = cmt_TermLoanMember
Capex Loan [Member]
Debt, Long-term and Short-term, Combined Amount [Abstract]
Debt	2,000,000us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = cmt_CapexLoanMember		2,428,000us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = cmt_CapexLoanMember
Debt Instrument, Interest Rate, Stated Percentage	1.75%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = cmt_CapexLoanMember		1.76%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = cmt_CapexLoanMember
Debt - face amount	12,000,000us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = cmt_CapexLoanMember
Mexican Loan [Member]
Debt, Long-term and Short-term, Combined Amount [Abstract]
Debt - face amount	$ 8,000,000us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = cmt_MexicanLoanMember

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- Definition

Derivative, Swap Type, Amortization of Pre-Tax Loss, Interest Expense, Before Tax, Monthly

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Derivative, Swap Type, Amortization of Pre-Tax Loss, Interest Expense, Net of Tax, Monthly

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Percent of Subsidiary Stock Not Security for Financing

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Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.

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Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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

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

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Fixed interest rate related to the interest rate derivative.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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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.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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