Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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The number of real estate properties owned as of the balance sheet date.

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The cash outflow from the acquisition of residential property intended to generate income for the owner.

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Cash received for the sale of real estate that is not part of an investing activity during the current period.

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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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Recent Real Estate Transactions (Disposals of Properties) (Details)			6 Months Ended
	May 08, 2019 USD ($)	Jan. 15, 2019 USD ($)	Jun. 30, 2019 USD ($) Property	Jun. 30, 2018 USD ($) Property	Dec. 31, 2018 USD ($)
Real Estate Properties [Line Items]
Mortgage notes issued for property acquired			$ 148,104,763		$ 149,714,176
Residential Properties [Member]
Real Estate Properties [Line Items]
Proceeds from sale of property	$ 875,000
Gain (loss) on sale of property	$ 93,000
Residential Properties [Member] \| Thirteen Dubose Model Homes [Member]
Real Estate Properties [Line Items]
Number of properties \| Property				13
Proceeds from sale of property				$ 4,600,000
Gain (loss) on sale of property				$ 429,000
Residential Properties [Member] \| Twenty-Six Dubose Model Homes [Member]
Real Estate Properties [Line Items]
Number of properties \| Property			26	26
Proceeds from sale of property			$ 9,400,000
Gain (loss) on sale of property			$ 783,000
Purchase price of property acquired				$ 10,200,000
Cash payment for the properties acquired				3,100,000
Mortgage notes issued for property acquired				$ 7,100,000
Residential Properties [Member] \| Eighteen Dubose Model Homes [Member]
Real Estate Properties [Line Items]
Number of properties \| Property			18
Purchase price of property acquired			$ 6,100,000
Cash payment for the properties acquired			1,800,000
Mortgage notes issued for property acquired			$ 4,300,000
Residential Properties [Member] \| Morena Office Center [Member]
Real Estate Properties [Line Items]
Proceeds from sale of property		$ 5,600,000
Gain (loss) on sale of property		$ 700,000