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Mortgages, Notes and Accrued Interest Receivable (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Mortgages, Notes and Accrued Interest Receivable [Abstract]    
Mortgages and notes receivable $ 10,974us-gaap_LoansAndLeasesReceivableGrossCarryingAmount $ 16,942us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Accrued interest receivables 101us-gaap_InterestReceivable 177us-gaap_InterestReceivable
Mortgages and notes receivable, net $ 11,075us-gaap_LoansAndLeasesReceivableNetReportedAmount $ 17,119us-gaap_LoansAndLeasesReceivableNetReportedAmount