Schedule IV - Mortgage Loans on Real Estate (Detail) - USD ($)	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Mortgage Loans on Real Estate [Line Items]
Prior Liens	$ 0
Face Amount of Mortgages	38,460,467
Carrying Amounts of Mortgages	38,331,956
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Balance at Beginning of Year	30,208,074	$ 18,845,053
New Mortgage Loans	15,394,878	30,266,498	$ 17,506,500
Loan Fees Paid	40,000	6,858	90,516
Accretion of Discount		649,658	1,403,842
Accretion of Origination Fees	74,781	30,326
Collection of Principal	(7,200,909)	(19,465,000)	(95,000)
Collection of Origination Fees	(181,250)	(88,750)
Amortization of Fees	(3,618)	(36,569)	(60,805)
Balance at End of Year	$ 38,331,956	$ 30,208,074	$ 18,845,053
Mezzanine Mortgage Loans [Member] \| Hotel [Member] \| Atlanta, GA [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate	12.00%
Final Maturity Date	February 2019
Periodic Payment Terms	Principal payable in full at maturity
Prior Liens	$ 0
Face Amount of Mortgages	5,000,000
Carrying Amounts of Mortgages	5,000,000
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mezzanine Mortgage Loans [Member] \| Hotel [Member] \| Dallas, TX [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate Description	30-day LIBOR plus 7.25%
Interest Rate	7.25%
Final Maturity Date	September 2019
Periodic Payment Terms	Principal payable in full at maturity
Prior Liens	$ 0
Face Amount of Mortgages	10,000,000
Carrying Amounts of Mortgages	10,000,000
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Junior Mortgage Loan [Member] \| Retail Shopping Center [Member] \| Sarasota, FL [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate Description	30-day LIBOR plus 7.25%
Interest Rate	7.25%
Final Maturity Date	June 2018
Periodic Payment Terms	Principal payable in full at maturity
Prior Liens	$ 0
Face Amount of Mortgages	8,960,467
Carrying Amounts of Mortgages	8,960,467
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
First Mortgage [Member] \| Commercial Real Estate Property \| San Juan, Puerto Rico [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate Description	30-day LIBOR plus 9.00%
Interest Rate	9.00%
Final Maturity Date	September 2020
Periodic Payment Terms	Principal payable in full at maturity
Prior Liens	$ 0
Face Amount of Mortgages	14,500,000
Carrying Amounts of Mortgages	14,371,489
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0

Mortgage loan on real estate accretion of origination fees.

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Mortgage Loans On Real Estate Accretion Of Discount

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Mortgage loans on real estate collection of origination fees.

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Mortgage Loans on Real Estate Final Maturity Year And Month

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Mortgage Loans On Real Estate Interest Rate Description Of Variable Rate Basis

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Mortgage loans on real estate loan fees paid.

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No definition available.

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- Definition

Total carrying amount of mortgage loans as of the balance sheet date.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 10
-Section S99
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- Definition

The amount of premium on mortgage loans on real estate amortized during the reporting period.

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- Definition

The carrying amount of the outstanding balance due under the mortgage loan.

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The amount of principal collected on mortgage loans on real estate during the reporting period.

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- Definition

Amount of principal due on loans that have been delinquent, which may exclude loans having interest delinquent for three months or less, as of the balance sheet date that were acquired from controlled and other affiliates.

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- Definition

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

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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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Total amount of new mortgage loans on real estate during the reporting period.

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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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Amount of prior lien on the real estate that secures the mortgage loan.

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