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Real Estate - Narrative (Details)						12 Months Ended
Real Estate - Narrative (Details)	Nov. 21, 2019 USD ($) ft²	Oct. 01, 2019 USD ($) ft²	Jan. 10, 2019 USD ($) ft²	Dec. 27, 2018 USD ($) ft²	Mar. 14, 2018 USD ($) ft²	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Nov. 01, 2019 ft²
Real Estate [Abstract]
Depreciation						$ 1,790,022	$ 339,053
Amortization						1,691,196	467,484
Asset management fees						309,006	84,721
Finite-Lived Intangible Assets [Line Items]
Acquisition fees						$ 1,127,500	$ 539,438
Mortgages \| Mortgage Agreement Collateralized By Richardson Tech Center Property
Finite-Lived Intangible Assets [Line Items]
Proceeds from issuance of debt					$ 2,520,000
Park Ten Place
Finite-Lived Intangible Assets [Line Items]
Area of real estate property \| ft²	91,215
Timberway
Finite-Lived Intangible Assets [Line Items]
Area of real estate property \| ft²	130,828
Park Ten Place and Timberway
Finite-Lived Intangible Assets [Line Items]
Acquisition fees	$ 490,000
Payments to acquire businesses, gross	$ 19,600,000
1400 Broadfield Building
Finite-Lived Intangible Assets [Line Items]
Area of real estate property \| ft²		102,893
16420 Park Ten Building
Finite-Lived Intangible Assets [Line Items]
Area of real estate property \| ft²		83,760
7915 FM 1960 Building
Finite-Lived Intangible Assets [Line Items]
Area of real estate property \| ft²								67,581
1400 Broadfield, 16420 Park Ten and 7915 FM 1960
Finite-Lived Intangible Assets [Line Items]
Acquisition fees		$ 513,750
Payments to acquire businesses, gross		$ 20,550,000
11211 Katy Freeway
Finite-Lived Intangible Assets [Line Items]
Acquisition fees			$ 123,750
Area of real estate property \| ft²			78,922
Payments to acquire businesses, gross			$ 4,370,786
Richardson Tech
Finite-Lived Intangible Assets [Line Items]
Acquisition fees					$ 126,000
Area of real estate property \| ft²					96,660
Payments to acquire businesses, gross					$ 5,040,000
Spectrum Building
Finite-Lived Intangible Assets [Line Items]
Acquisition fees				$ 413,438
Area of real estate property \| ft²				175,390
Payments to acquire businesses, gross				$ 16,537,500