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Segments (Capital Expenditures) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract]
Capital expenditures and tenant improvements	$ 2,696,422	$ 1,204,778
Acquisition of operating properties		7,284,141
Total real estate investments	2,696,422	8,488,919
Office/Industrial Properties [Member]
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract]
Capital expenditures and tenant improvements	$ 2,696,422	1,185,518
Model Home Properties [Member]
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract]
Acquisition of operating properties		7,284,141
Retail/Mixed Use Properties [Member]
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract]
Capital expenditures and tenant improvements		$ 19,260

X

- Definition

The total of additions to real estate and lease intangibles

+ References

No definition available.

+ Details

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X

- Definition

Reconciliation of other significant reconciling items from segments to consolidated.

+ References

No definition available.

+ Details

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X

- Definition

Amount of cash outflow for the allowance granted to lessee and/or direct costs incurred by lessor used to prepare the leased premises for tenant's occupancy.

+ References

No definition available.

+ Details

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X

- Definition

The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585

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- Details

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