| Segment Reporting [Table Text Block] |
| | | For the Three Months Ended March 31, 2026 | |
| | | | | | | | | | | | | | | | | | | | | |
| | | Retail | | | Office/Industrial | | | Model Homes | | | Corporate and Other | | | Total | |
| Revenues: | | | | | | | | | | | | | | | | | | | | |
| Rental income | | $ | 93,574 | | | $ | 2,670,580 | | | $ | 919,890 | | | $ | — | | | $ | 3,684,044 | |
| Fees and other income | | | - | | | | 82,800 | | | | 5,534 | | | | 422 | | | | 88,756 | |
| Total revenue | | | 93,574 | | | | 2,753,380 | | | | 925,424 | | | | 422 | | | | 3,772,800 | |
| Costs and expenses: | | | | | | | | | | | | | | | | | | | | |
| Rental operating costs | | | 4,832 | | | | 1,630,837 | | | | 48,877 | | | | (140,105 | ) | | | 1,544,441 | |
| General and administrative | | | — | | | | 17,499 | | | | 226,882 | | | | 1,429,442 | | | | 1,673,823 | |
| Depreciation and amortization | | | 22,928 | | | | 784,276 | | | | 191,292 | | | | 473 | | | | 998,969 | |
| Impairment of goodwill and real estate assets | | | — | | | | 448,734 | | | | 75,639 | | | | — | | | | 524,373 | |
| Total costs and expenses | | | 27,760 | | | | 2,881,346 | | | | 542,690 | | | | 1,289,810 | | | | 4,741,606 | |
| Other income (expense): | | | | | | | | | | | | | | | | | | | | |
| Interest expense - mortgage notes | | | (43,117 | ) | | | (1,543,083 | ) | | | (462,558 | ) | | | (1,316 | ) | | | (2,050,074 | ) |
| Interest and other income, net | | | — | | | | — | | | | 9 | | | | 5,140 | | | | 5,149 | |
| Net loss in Conduit Pharmaceuticals marketable securities (see footnote 9) | | | — | | | | — | | | | — | | | | 1,985 | | | | 1,985 | |
| Gain on sales of real estate, net | | | — | | | | — | | | | 172,096 | | | | — | | | | 172,096 | |
| Gain on disposition of assets and liabilities, net | | | — | | | | 3,416,501 | | | | — | | | | — | | | | 3,416,501 | |
| Income tax (expense) benefit | | | — | | | | — | | | | (15,657 | ) | | | (2,400 | ) | | | (18,057 | ) |
| Total other income (expense), net | | | (43,117 | ) | | | 1,873,418 | | | | (306,110 | ) | | | 3,409 | | | | 1,527,600 | |
| Net income (loss) | | | 22,697 | | | | 1,745,452 | | | | 76,624 | | | | (1,285,979 | ) | | | 558,794 | |
| Less: Income attributable to noncontrolling interests | | | — | | | | 2,053 | | | | (119,938 | ) | | | — | | | | (117,885 | ) |
| Net income (loss) attributable to Presidio Property Trust, Inc. stockholders | | $ | 22,697 | | | $ | 1,747,505 | | | $ | (43,314 | ) | | $ | (1,285,979 | ) | | $ | 440,909 | |
| | | For the Three Months Ended March 31, 2025 | |
| | | | | | | | | | | | | | | | | | | | | |
| | | Retail | | | Office/Industrial | | | Model Homes | | | Corporate and Other | | | Total | |
| Revenues: | | | | | | | | | | | | | | | | | | | | |
| Rental income | | $ | 262,878 | | | $ | 2,854,030 | | | $ | 915,521 | | | $ | — | | | $ | 4,032,429 | |
| Fees and other income | | | 400 | | | | 62,362 | | | | (1,754 | ) | | | 31,747 | | | | 92,755 | |
| Total revenue | | | 263,278 | | | | 2,916,392 | | | | 913,767 | | | | 31,747 | | | | 4,125,184 | |
| Costs and expenses: | | | | | | | | | | | | | | | | | | | | |
| Rental operating costs | | | 100,568 | | | | 1,618,365 | | | | 48,157 | | | | (154,448 | ) | | | 1,612,642 | |
| General and administrative | | | — | | | | 16,850 | | | | 229,961 | | | | 1,415,167 | | | | 1,661,978 | |
| Depreciation and amortization | | | 31,689 | | | | 999,169 | | | | 212,012 | | | | 1,234 | | | | 1,244,104 | |
| Impairment of goodwill and real estate assets | | | — | | | | — | | | | 26,943 | | | | — | | | | 26,943 | |
| Total costs and expenses | | | 132,257 | | | | 2,634,384 | | | | 517,073 | | | | 1,261,953 | | | | 4,545,667 | |
| Other income (expense): | | | | | | | | | | | | | | | | | | | | |
| Interest expense - mortgage notes | | | (158,097 | ) | | | (891,330 | ) | | | (459,710 | ) | | | (1,333 | ) | | | (1,510,470 | ) |
| Interest and other income, net | | | — | | | | — | | | | 8 | | | | 5,141 | | | | 5,149 | |
| Net gain in Conduit Pharmaceuticals marketable securities (see footnote 9) | | | — | | | | — | | | | — | | | | (176,658 | ) | | | (176,658 | ) |
| Gain on sales of real estate, net | | | 4,213,068 | | | | — | | | | 240,900 | | | | — | | | | 4,453,968 | |
| Income tax (expense) benefit | | | — | | | | — | | | | (22,171 | ) | | | 47,580 | | | | 25,409 | |
| Total other income (expense), net | | | 4,054,971 | | | | (891,330 | ) | | | (240,973 | ) | | | (125,270 | ) | | | 2,797,398 | |
| Net income (loss) | | | 4,185,992 | | | | (609,322 | ) | | | 155,721 | | | | (1,355,476 | ) | | | 2,376,915 | |
| Less: Income attributable to noncontrolling interests | | | — | | | | (17,959 | ) | | | (93,604 | ) | | | — | | | | (111,563 | ) |
| Net income (loss) attributable to Presidio Property Trust, Inc. stockholders | | $ | 4,185,992 | | | $ | (627,281 | ) | | $ | 62,117 | | | $ | (1,355,476 | ) | | $ | 2,265,352 | |
|
| Schedule of Segment Reporting Information, Net Operating Income by Segment [Table Text Block] |
| | | For the Three Months Ended March 31, 2026 | |
| | | | | | | | | | | | | | | | | | | | | |
| | | Retail | | | Office/Industrial | | | Model Homes | | | Corporate and Other | | | Total | |
| | | | | | | | | | | | | | | | | | | | | |
| Rental revenue | | $ | 93,574 | | | $ | 2,234,494 | | | $ | 919,890 | | | $ | — | | | $ | 3,247,958 | |
| Recovery revenue | | | - | | | | 436,086 | | | | — | | | | — | | | | 436,086 | |
| Other operating revenue | | | - | | | | 82,800 | | | | 5,534 | | | | 422 | | | | 88,756 | |
| Total revenues | | | 93,574 | | | | 2,753,380 | | | | 925,424 | | | | 422 | | | | 3,772,800 | |
| | | | | | | | | | | | | | | | | | | | | |
| Rental operating costs | | | 4,832 | | | | 1,630,837 | | | | 48,877 | | | | (140,105 | ) | | | 1,544,441 | |
| Net Operating Income (NOI) | | | 88,742 | | | | 1,122,543 | | | | 876,547 | | | | 140,527 | | | | 2,228,359 | |
| | | | | | | | | | | | | | | | | | | | | |
| Gain on Sale - Model Homes | | | — | | | | — | | | | 172,096 | | | | — | | | | 172,096 | |
| Impairment of Model Homes | | | — | | | | — | | | | (75,639 | ) | | | — | | | | (75,639 | ) |
| | | | | | | | | | | | | | | | | | | | | |
| Adjusted NOI | | $ | 88,742 | | | $ | 1,122,543 | | | $ | 973,004 | | | $ | 140,527 | | | $ | 2,324,816 | |
| | | For the Three Months Ended March 31, 2025 | |
| | | | | | | | | | | | | | | | | | | | | |
| | | Retail | | | Office/Industrial | | | Model Homes | | | Corporate and Other | | | Total | |
| | | | | | | | | | | | | | | | | | | | | |
| Rental revenue | | $ | 206,439 | | | $ | 2,467,551 | | | $ | 915,521 | | | $ | — | | | $ | 3,589,511 | |
| Recovery revenue | | | 56,439 | | | | 386,479 | | | | — | | | | — | | | | 442,918 | |
| Other operating revenue | | | 400 | | | | 62,362 | | | | (1,754 | ) | | | 31,747 | | | | 92,755 | |
| Total revenues | | | 263,278 | | | | 2,916,392 | | | | 913,767 | | | | 31,747 | | | | 4,125,184 | |
| | | | | | | | | | | | | | | | | | | | | |
| Rental operating costs | | | 100,568 | | | | 1,618,365 | | | | 48,157 | | | | (154,448 | ) | | | 1,612,642 | |
| Net Operating Income (NOI) | | | 162,710 | | | | 1,298,027 | | | | 865,610 | | | | 186,195 | | | | 2,512,542 | |
| | | | | | | | | | | | | | | | | | | | | |
| Gain on Sale - Model Home | | | — | | | | — | | | | 240,899 | | | | — | | | | 240,899 | |
| Impairment of Model Homes | | | — | | | | — | | | | (26,943 | ) | | | — | | | | (26,943 | ) |
| | | | | | | | | | | | | | | | | | | | | |
| Adjusted NOI | | $ | 162,710 | | | $ | 1,298,027 | | | $ | 1,079,566 | | | $ | 186,195 | | | $ | 2,726,498 | |
|
| Segment Reporting, Reconciliation of Asset by Segment to Consolidated [Table Text Block] |
| | | March 31, | | | December 31, | |
| Assets by Reportable Segment: | | 2026 | | | 2025 | |
| Office/Industrial Properties: | | | | | | | | |
| Land, buildings and improvements, net (1) | | $ | 61,748,416 | | | $ | 67,445,290 | |
| Total assets (2) | | $ | 69,016,593 | | | $ | 68,980,087 | |
| Model Home Properties: | | | | | | | | |
| Land, buildings and improvements, net (1) | | $ | 34,253,639 | | | $ | 36,688,462 | |
| Total assets (2) | | $ | 34,519,643 | | | $ | 37,301,777 | |
| Retail Properties: | | | | | | | | |
| Land, buildings and improvements, net (1) | | $ | 4,485,923 | | | $ | 4,508,851 | |
| Total assets (2) | | $ | 4,652,651 | | | $ | 4,669,852 | |
| Reconciliation to Total Assets: | | | | | | | | |
| Total assets for reportable segments | | $ | 108,188,887 | | | $ | 110,951,716 | |
| Corporate and other assets: | | | | | | | | |
| Cash, cash equivalents and restricted cash | | | 116,685 | | | | 173,621 | |
| Other assets, net | | | 2,941,203 | | | | 10,927,537 | |
| Total Assets | | $ | 111,246,775 | | | $ | 122,052,874 | |
|