Property Loans, Net of Loan Loss Allowance - Summary of Partnership's Property Loans, Net of Loan Loss Allowance (Details) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	$ 31,211,804	$ 36,907,688
Loan Loss Allowance	(7,393,814)	(7,393,814)
Property Loan Principal, net of allowance	23,817,990	29,513,874
Arbors at Hickory Ridge [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	191,264	191,264
Property Loan Principal, net of allowance	191,264	191,264
Avistar (February 2013 Portfolio) [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	201,972	201,972
Property Loan Principal, net of allowance	201,972	201,972
Avistar (June 2013 Portfolio) [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	251,622	251,622
Property Loan Principal, net of allowance	251,622	251,622
Cross Creek [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	11,101,887	11,101,887
Loan Loss Allowance	(7,393,814)	(7,393,814)
Property Loan Principal, net of allowance	3,708,073	3,708,073
Greens Property [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	850,000	850,000
Property Loan Principal, net of allowance	850,000	850,000
Lake Forest [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance		4,995,884
Property Loan Principal, net of allowance		4,995,884
Ohio Properties [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	2,390,446	2,390,446
Property Loan Principal, net of allowance	2,390,446	2,390,446
Vantage at New Braunfels, LLC [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	7,156,978	7,406,978
Property Loan Principal, net of allowance	7,156,978	7,406,978
Vantage at Brooks LLC [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	8,367,635	8,417,635
Property Loan Principal, net of allowance	8,367,635	8,417,635
Winston Group, Inc [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	700,000	1,100,000
Property Loan Principal, net of allowance	$ 700,000	$ 1,100,000

Property loan receivable, gross - Amount before allowance of loans held in portfolio. Includes principal only.

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- Definition

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+ References

No definition available.

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-SubTopic 210
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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes loans held for sale. Excludes loans and leases covered under loss sharing agreements.

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