Annual report pursuant to Section 13 and 15(d)

Investment In Marketable Securities (Schedule Of Fair Value Of Assets) (Details)

v2.4.1.9
Investment In Marketable Securities (Schedule Of Fair Value Of Assets) (Details) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Trading Securities $ 6,026,780us-gaap_TradingSecurities $ 1,717,436us-gaap_TradingSecurities
Available-for-Sale Securities    2,900,090us-gaap_AvailableForSaleSecuritiesCurrent
Fair Value    
Trading Securities 6,026,780us-gaap_TradingSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueEstimateNotPracticableCarryingReportedAmountMember
1,717,436us-gaap_TradingSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueEstimateNotPracticableCarryingReportedAmountMember
Money market funds 673,281us-gaap_MoneyMarketFundsAtCarryingValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueEstimateNotPracticableCarryingReportedAmountMember
97,356us-gaap_MoneyMarketFundsAtCarryingValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueEstimateNotPracticableCarryingReportedAmountMember
Available-for-Sale Securities   2,900,090us-gaap_AvailableForSaleSecuritiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueEstimateNotPracticableCarryingReportedAmountMember
Total 6,700,061us-gaap_MarketableSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueEstimateNotPracticableCarryingReportedAmountMember
4,714,882us-gaap_MarketableSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueEstimateNotPracticableCarryingReportedAmountMember
Fair Value Measurements Using Quoted Prices in Active Markets (Level 1)    
Trading Securities 6,026,780us-gaap_TradingSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
1,717,436us-gaap_TradingSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Money market funds 673,281us-gaap_MoneyMarketFundsAtCarryingValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
97,356us-gaap_MoneyMarketFundsAtCarryingValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Available-for-Sale Securities   2,900,090us-gaap_AvailableForSaleSecuritiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Total 6,700,061us-gaap_MarketableSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
4,714,882us-gaap_MarketableSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Fair Value Measurements Using Significant Other Observable Inputs (Level 2)    
Trading Securities      
Money market funds      
Available-for-Sale Securities     
Total      
Fair Value Measurements Using Significant Unobservable Inputs (Level 3)    
Trading Securities      
Money market funds      
Available-for-Sale Securities     
Total