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Marketable Securities (Narrative) (Details) (USD $)
9 Months Ended 12 Months Ended
Dec. 31, 2014
Mar. 31, 2014
Schedule of Investments [Line Items]    
Gross unrealized losses $ 102,420us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses $ 251,582us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses
Marketable Securities, Continuous Unrealized Loss Position, 12 Months or Greater, Fair Market Value 8,382,167us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue  
Marketable Securities, Continuous Unrealized Loss Position, 12 Months or Greater, Gross Unrealized Losses 62,016us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses  
Municipal Bonds [Member]    
Schedule of Investments [Line Items]    
Gross unrealized losses $ 466us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses
/ us-gaap_InvestmentTypeAxis
= us-gaap_MunicipalBondsMember
$ 4,609us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses
/ us-gaap_InvestmentTypeAxis
= us-gaap_MunicipalBondsMember