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Components of Deferred Income Tax Assets and Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Schedule of Deferred Tax Assets and Liabilities [Line Items]    
Inventory $ 1,037us-gaap_DeferredTaxAssetsInventory $ 1,019us-gaap_DeferredTaxAssetsInventory
Accrued vacation and bonus 664us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther 435us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther
Unrealized loss on forward contracts 856cscd_DeferredTaxAssetsUnrealizedLosses 132cscd_DeferredTaxAssetsUnrealizedLosses
Gross current deferred tax assets 3,027us-gaap_DeferredTaxAssetsGrossCurrent 2,268us-gaap_DeferredTaxAssetsGrossCurrent
Valuation allowance 0us-gaap_DeferredTaxAssetsValuationAllowanceCurrent 0us-gaap_DeferredTaxAssetsValuationAllowanceCurrent
Net current deferred tax assets 3,027us-gaap_DeferredTaxAssetsNetCurrent 2,268us-gaap_DeferredTaxAssetsNetCurrent
Federal and state net operating loss ("NOL") carryforwards 21us-gaap_DeferredTaxAssetsOperatingLossCarryforwards 573us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Federal and state tax credits 1,781us-gaap_DeferredTaxAssetsTaxCreditCarryforwards 2,640us-gaap_DeferredTaxAssetsTaxCreditCarryforwards
Stock-based compensation 565us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost 506us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
Intangibles 1,278us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets 1,225us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets
Other non-current deferred tax assets 637cscd_DeferredTaxAssetsOtherNonCurrent 768cscd_DeferredTaxAssetsOtherNonCurrent
Gross non-current deferred tax assets 4,464us-gaap_DeferredTaxAssetsGrossNoncurrent 5,886us-gaap_DeferredTaxAssetsGrossNoncurrent
Valuation allowance   (158)us-gaap_DeferredTaxAssetsValuationAllowanceNoncurrent
Net non-current deferred tax assets 4,464us-gaap_DeferredTaxAssetsNetNoncurrent 5,728us-gaap_DeferredTaxAssetsNetNoncurrent
Foreign earnings   (536)us-gaap_DeferredTaxLiabilitiesUndistributedForeignEarnings
Intangibles (2,936)cscd_DeferredTaxLiabilitiesIntangibleAssets (3,843)cscd_DeferredTaxLiabilitiesIntangibleAssets
Total non-current deferred tax liabilities (3,202)us-gaap_DeferredTaxLiabilitiesGrossNoncurrent (4,493)us-gaap_DeferredTaxLiabilitiesGrossNoncurrent
Non-current deferred tax assets, net 1,262us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent 1,235us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent
Net total deferred tax assets 4,289us-gaap_DeferredTaxAssetsLiabilitiesNet 3,503us-gaap_DeferredTaxAssetsLiabilitiesNet
Current    
Schedule of Deferred Tax Assets and Liabilities [Line Items]    
Reserves and allowances 273us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals
/ us-gaap_BalanceSheetLocationAxis
= cscd_CurrentMember		 420us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals
/ us-gaap_BalanceSheetLocationAxis
= cscd_CurrentMember
Other current deferred tax assets 197us-gaap_DeferredTaxAssetsOther
/ us-gaap_BalanceSheetLocationAxis
= cscd_CurrentMember		 262us-gaap_DeferredTaxAssetsOther
/ us-gaap_BalanceSheetLocationAxis
= cscd_CurrentMember
Non Current    
Schedule of Deferred Tax Assets and Liabilities [Line Items]    
Reserves and allowances 182us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals
/ us-gaap_BalanceSheetLocationAxis
= cscd_NonCurrentMember		 174us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals
/ us-gaap_BalanceSheetLocationAxis
= cscd_NonCurrentMember
Other non-current deferred tax liabilities $ (266)us-gaap_DeferredTaxLiabilitiesOther
/ us-gaap_BalanceSheetLocationAxis
= cscd_NonCurrentMember		 $ (114)us-gaap_DeferredTaxLiabilitiesOther
/ us-gaap_BalanceSheetLocationAxis
= cscd_NonCurrentMember