Annual report pursuant to Section 13 and 15(d)

Short-Term Investments and Marketable Securities - Cost and Market Values of Investments (Details)

v2.4.1.9
Short-Term Investments and Marketable Securities - Cost and Market Values of Investments (Details) (USD $)
Nov. 30, 2014
Schedule Of Investments In Marketable Securities [Line Items]  
Cost of Each Issue $ 823,419us-gaap_InvestmentOwnedAtCost
Market Value of Each Issue at Balance Sheet Date 1,112,440us-gaap_InvestmentOwnedAtFairValue
Limited partnership  
Schedule Of Investments In Marketable Securities [Line Items]  
Cost of Each Issue 223,373us-gaap_InvestmentOwnedAtCost
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= caw_LimitedPartnershipMember
Market Value of Each Issue at Balance Sheet Date 354,050us-gaap_InvestmentOwnedAtFairValue
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= caw_LimitedPartnershipMember
Energy Transfer Partners | Limited partnership  
Schedule Of Investments In Marketable Securities [Line Items]  
Number of Units 1,000us-gaap_InvestmentOwnedBalanceShares
/ invest_InvestmentIssuerAxis
= caw_EnergyTransferPartnersMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= caw_LimitedPartnershipMember
Cost of Each Issue 50,695us-gaap_InvestmentOwnedAtCost
/ invest_InvestmentIssuerAxis
= caw_EnergyTransferPartnersMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= caw_LimitedPartnershipMember
Market Value of Each Issue at Balance Sheet Date 54,160us-gaap_InvestmentOwnedAtFairValue
/ invest_InvestmentIssuerAxis
= caw_EnergyTransferPartnersMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= caw_LimitedPartnershipMember
Enterprise Prods Partners | Limited partnership  
Schedule Of Investments In Marketable Securities [Line Items]  
Number of Units 500us-gaap_InvestmentOwnedBalanceShares
/ invest_InvestmentIssuerAxis
= caw_EnterpriseProductsPartnersLPMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= caw_LimitedPartnershipMember
Cost of Each Issue 21,190us-gaap_InvestmentOwnedAtCost
/ invest_InvestmentIssuerAxis
= caw_EnterpriseProductsPartnersLPMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= caw_LimitedPartnershipMember
Market Value of Each Issue at Balance Sheet Date 31,485us-gaap_InvestmentOwnedAtFairValue
/ invest_InvestmentIssuerAxis
= caw_EnterpriseProductsPartnersLPMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= caw_LimitedPartnershipMember
Kinder Morgan Energy | Limited partnership  
Schedule Of Investments In Marketable Securities [Line Items]  
Number of Units 500us-gaap_InvestmentOwnedBalanceShares
/ invest_InvestmentIssuerAxis
= caw_KinderMorganEnergyMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= caw_LimitedPartnershipMember
Cost of Each Issue 34,762us-gaap_InvestmentOwnedAtCost
/ invest_InvestmentIssuerAxis
= caw_KinderMorganEnergyMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= caw_LimitedPartnershipMember
Market Value of Each Issue at Balance Sheet Date 40,985us-gaap_InvestmentOwnedAtFairValue
/ invest_InvestmentIssuerAxis
= caw_KinderMorganEnergyMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= caw_LimitedPartnershipMember
Magellan Midstream Partners | Limited partnership  
Schedule Of Investments In Marketable Securities [Line Items]  
Number of Units 1,000us-gaap_InvestmentOwnedBalanceShares
/ invest_InvestmentIssuerAxis
= caw_MagellanMidstreamPartnersMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= caw_LimitedPartnershipMember
Cost of Each Issue 53,113us-gaap_InvestmentOwnedAtCost
/ invest_InvestmentIssuerAxis
= caw_MagellanMidstreamPartnersMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= caw_LimitedPartnershipMember
Market Value of Each Issue at Balance Sheet Date 124,280us-gaap_InvestmentOwnedAtFairValue
/ invest_InvestmentIssuerAxis
= caw_MagellanMidstreamPartnersMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= caw_LimitedPartnershipMember
Plains All Amern Pipeline | Limited partnership  
Schedule Of Investments In Marketable Securities [Line Items]  
Number of Units 1,000us-gaap_InvestmentOwnedBalanceShares
/ invest_InvestmentIssuerAxis
= caw_PlainsAllAmericanPipelineLimitedPartnerMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= caw_LimitedPartnershipMember
Cost of Each Issue 63,613us-gaap_InvestmentOwnedAtCost
/ invest_InvestmentIssuerAxis
= caw_PlainsAllAmericanPipelineLimitedPartnerMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= caw_LimitedPartnershipMember
Market Value of Each Issue at Balance Sheet Date 103,140us-gaap_InvestmentOwnedAtFairValue
/ invest_InvestmentIssuerAxis
= caw_PlainsAllAmericanPipelineLimitedPartnerMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= caw_LimitedPartnershipMember
S&P 500 ETF Trust | Common stock  
Schedule Of Investments In Marketable Securities [Line Items]  
Number of Units 4,190us-gaap_InvestmentOwnedBalanceShares
/ invest_InvestmentIssuerAxis
= caw_StandardAndPoorsFiveHundredExchangeTradedFundsTrustMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommonStockMember
Cost of Each Issue 600,046us-gaap_InvestmentOwnedAtCost
/ invest_InvestmentIssuerAxis
= caw_StandardAndPoorsFiveHundredExchangeTradedFundsTrustMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommonStockMember
Market Value of Each Issue at Balance Sheet Date $ 758,390us-gaap_InvestmentOwnedAtFairValue
/ invest_InvestmentIssuerAxis
= caw_StandardAndPoorsFiveHundredExchangeTradedFundsTrustMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommonStockMember