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 | $ 18,000,000 us-gaap_LongTermDebt |  | $ 5,196,000 us-gaap_LongTermDebt |
Revolving Line of Credit | 1,000,000 us-gaap_LineOfCreditFacilityAmountOutstanding |  | 2,768,000 us-gaap_LineOfCreditFacilityAmountOutstanding |
Less current portion | (5,714,000)us-gaap_DebtCurrent |  | (4,482,000)us-gaap_DebtCurrent |
Long-term debt | 12,286,000 us-gaap_LongTermDebtNoncurrent |  | 714,000 us-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 | 26,000 us-gaap_DerivativeLiabilities / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember |  | 37,000 us-gaap_DerivativeLiabilities / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember |
Interest income (loss) for mark-to-market adjustment of swap fair value | 11,000 us-gaap_ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1 / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember | 18,000 us-gaap_ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1 / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember |  |
Derivative, Notional Amount | 2,000,000 invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember |  | 2,428,000 invest_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 |  |  |  | 146,000 cmt_DerivativeSwapTypePreTaxLoss / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherThanTemporaryImpairmentMember
Amortization of Pre-Tax Loss to Interest Expense, Before Tax, Monthly | 2,000 cmt_DerivativeSwapTypeAmortizationofPreTaxLossInterestExpenseBeforeTaxMonthly / us-gaap_DerivativeByNatureAxis = cmt_CapexLoanSwapAgreementMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherThanTemporaryImpairmentMember |  |  |
Amortization of Pre-Tax Loss to Interest Expense, Net of Tax, Monthly | 1,000 cmt_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 | 1,000,000 us-gaap_LineOfCreditFacilityAmountOutstanding / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |  | 2,768,000 us-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 | 18,000,000 us-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 | 15,000,000 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = cmt_TermLoanMember |  | 0 us-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 | 15,500,000 us-gaap_ProceedsFromRepaymentsOfDebt / us-gaap_DebtInstrumentAxis = cmt_TermLoanMember | 0 us-gaap_ProceedsFromRepaymentsOfDebt / us-gaap_DebtInstrumentAxis = cmt_TermLoanMember |  |
Repayments of Short-term Debt | 500,000 us-gaap_RepaymentsOfShortTermDebt / us-gaap_DebtInstrumentAxis = cmt_TermLoanMember | 0 us-gaap_RepaymentsOfShortTermDebt / us-gaap_DebtInstrumentAxis = cmt_TermLoanMember |  |
Capex Loan [Member] |  |  |  |
Debt, Long-term and Short-term, Combined Amount [Abstract] |  |  |  |
Debt | 2,000,000 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = cmt_CapexLoanMember |  | 2,428,000 us-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 | 12,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = cmt_CapexLoanMember |  |  |
Mexican Loan [Member] |  |  |  |
Debt, Long-term and Short-term, Combined Amount [Abstract] |  |  |  |
Debt - face amount | $ 8,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = cmt_MexicanLoanMember |  |  |

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