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MORTGAGE NOTES PAYABLE (Scheduled Principal Payments of Mortgage Notes Payable) (Details)	Jun. 30, 2020 USD ($)
Debt Instrument [Line Items]
Six months remaining in 2020	$ 7,032,975
2021	29,091,117
2022	18,303,975
2023	5,419,196
2024	1,645,496
Thereafter	64,949,341
Total	126,442,100
Model Home
Debt Instrument [Line Items]
Six months remaining in 2020	6,150,969
2021	12,708,950
2022	8,505,525
2023	3,904,585
2024	0
Thereafter	0
Total	31,270,029
Presidio Property Trust, Inc. Notes Payable
Debt Instrument [Line Items]
Six months remaining in 2020	882,006
2021	16,382,167
2022	9,798,450
2023	1,514,611
2024	1,645,496
Thereafter	64,949,341
Total	$ 95,172,071

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