Schedule IV - Mortgage Loans on Real Estate (Details)	12 Months Ended
Dec. 31, 2014 USD ($) Number
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Face Amount of Mortgages	$ 53,435,272
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 54,678,382
First Mortgage [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate Asset Type	Residential whole loan at fair value
Mortgage Loans on Real Estate Loan Description	Loan Balance $0-$999,999
Mortgage Loans on Real Estate, Number of Loans \| Number	69
Mortgage Loans on Real Estate, Minimum Interest Rate in Range	3.625%
Mortgage Loans on Real Estate, Maximum Interest Rate in Range	5.00%
Mortgage Loan On Real Estate Final Maturity Start Date	Mar. 01, 2040
Mortgage Loan On Real Estate Final Maturity End Date	Dec. 01, 2044
Mortgage Loans on Real Estate, Periodic Payment Terms	P&I
Mortgage Loans on Real Estate, Face Amount of Mortgages	$ 43,319,003
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 44,337,239
Second Mortgage [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate Asset Type	Residential whole loan at fair value
Mortgage Loans on Real Estate Loan Description	Loan Balance $1,000,000-$1,999,999
Mortgage Loans on Real Estate, Number of Loans \| Number	6
Mortgage Loans on Real Estate, Minimum Interest Rate in Range	3.75%
Mortgage Loans on Real Estate, Maximum Interest Rate in Range	4.50%
Mortgage Loan On Real Estate Final Maturity Start Date	May 01, 2043
Mortgage Loan On Real Estate Final Maturity End Date	Nov. 01, 2044
Mortgage Loans on Real Estate, Periodic Payment Terms	P&I
Mortgage Loans on Real Estate, Face Amount of Mortgages	$ 7,260,535
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 7,391,718
Third Mortgage [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate Asset Type	Residential whole loan at fair value
Mortgage Loans on Real Estate Loan Description	Loan Balance $0-$999,999
Mortgage Loans on Real Estate, Number of Loans \| Number	2
Mortgage Loans on Real Estate, Minimum Interest Rate in Range	3.50%
Mortgage Loans on Real Estate, Maximum Interest Rate in Range	3.875%
Mortgage Loan On Real Estate Final Maturity Start Date	Dec. 01, 2043
Mortgage Loan On Real Estate Final Maturity End Date	Aug. 01, 2044
Mortgage Loans on Real Estate, Periodic Payment Terms	P&I
Mortgage Loans on Real Estate, Face Amount of Mortgages	$ 1,378,874
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 1,412,567
Fourth Mortgage [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate Asset Type	Residential whole loan at fair value
Mortgage Loans on Real Estate Loan Description	Loan Balance $1,000,000-$1,999,999
Mortgage Loans on Real Estate, Number of Loans \| Number	1
Mortgage Loans on Real Estate, Interest Rate	4.25%
Mortgage Loans on Real Estate, Final Maturity Date	Dec. 01, 2043
Mortgage Loans on Real Estate, Periodic Payment Terms	P&I
Mortgage Loans on Real Estate, Face Amount of Mortgages	$ 1,476,860
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 1,536,858

Stated maturity end date of the mortgage loan receivable on real estate, in CCYY-MM-DD format.

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- Definition

Stated maturity start date of the mortgage loan receivable on real estate, in CCYY-MM-DD format.

+ References

No definition available.

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- Definition

The description of a mortgage loan or group of similar mortgage loans, which may include number of loans by original loan amounts and type of loan.

+ References

No definition available.

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- Definition

This element represents the categories used to group real estate mortgage loans into groups of loans by loan category. Examples of loan categories include, but are not limited to, first mortgage, second mortgage, and construction loans.

+ References

No definition available.

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Stated maturity date of the mortgage loan receivable on real estate, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 10
-Section S99
-Paragraph 6
-Subparagraph (SX 210.5-04.(c) Schedule IV)
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The carrying amount of the outstanding balance due under the mortgage loan.

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Amount of the contractual principal due at the origination of the mortgage loan (face amount).

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- Definition

The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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The highest stated interest rate within the mortgage loans included in the loan grouping.

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The lowest stated interest rate within the mortgage loans included in the loan grouping.

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- Definition

Indicates the number of mortgages under each classification.

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Description of the contractual payment terms of the loan receivable including whether principal and interest is payable at a level or varying amount over the life of the loan, the amount of any balloon payment required at maturity, and any prepayment penalties.

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