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Accrued Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Schedule of Accrued Liabilities [Line Items]    
Accrued compensation and benefits $ 3,606us-gaap_AccruedEmployeeBenefitsCurrent $ 2,812us-gaap_AccruedEmployeeBenefitsCurrent
Accrued sales taxes and VAT 276us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent 470us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent
Accrued income taxes 1,628us-gaap_AccruedIncomeTaxesCurrent 492us-gaap_AccruedIncomeTaxesCurrent
Accrued warranty 797us-gaap_ProductWarrantyAccrualClassifiedCurrent 745us-gaap_ProductWarrantyAccrualClassifiedCurrent
Accrued restructuring costs 1,959cscd_AccruedRestructuringCostsCurrent 1,163cscd_AccruedRestructuringCostsCurrent
Other 783us-gaap_OtherAccruedLiabilitiesCurrent 1,081us-gaap_OtherAccruedLiabilitiesCurrent
Accrued liabilities 9,505us-gaap_AccruedLiabilitiesCurrent 8,859us-gaap_AccruedLiabilitiesCurrent
Acquisition of RTP    
Schedule of Accrued Liabilities [Line Items]    
Contingent consideration related to RTP acquisition   1,350cscd_AccruedContingentConsiderationBusinessAcquisition
/ us-gaap_BusinessAcquisitionAxis
= cscd_ReliabilityTestProductDivisionOfAetriumIncorporatedMember
Acquisition of ATT Systems    
Schedule of Accrued Liabilities [Line Items]    
Payable to seller related to ATT acquisition $ 456cscd_AccruedAcquisitionPaymentCurrent
/ us-gaap_BusinessAcquisitionAxis
= cscd_AdvancedTemperatureTestSystemsMember		 $ 746cscd_AccruedAcquisitionPaymentCurrent
/ us-gaap_BusinessAcquisitionAxis
= cscd_AdvancedTemperatureTestSystemsMember