Quarterly report pursuant to Section 13 or 15(d)

Investment In Marketable Securities (Schedule Of Change In Investment In Securities) (Details)

v2.4.1.9
Investment In Marketable Securities (Schedule Of Change In Investment In Securities) (Details) (Trading Securities, USD $)
3 Months Ended
Mar. 31, 2015
Trading Securities
 
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Fair Value at January 1, 2015 $ 6,026,780us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_TradingAccountAssetsMember
Proceeds from Sale (747,489)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_TradingAccountAssetsMember
Loss on Sale (298,122)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_TradingAccountAssetsMember
Change In Unrealized Gain (Loss) (1,122,546)us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_TradingAccountAssetsMember
Fair Value at March 31, 2015 $ 3,858,623us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_TradingAccountAssetsMember