| Schedule of Segment Reporting Information, Net Operating Income by Segment [Table Text Block] |
| | | For the Three Months Ended June 30, 2026 | |
| | | | | | | | | | | | | | | | | | | | | |
| | | Retail | | | Office/Industrial | | | Model Homes | | | Corporate and Other | | | Total | |
| | | | | | | | | | | | | | | | | | | | | |
| Rental revenue | | $ | 93,574 | | | $ | 2,448,222 | | | $ | 816,060 | | | $ | — | | | $ | 3,357,856 | |
| Recovery revenue | | | - | | | | 398,512 | | | | — | | | | — | | | | 398,512 | |
| Other operating revenue | | | - | | | | 51,316 | | | | 512 | | | | 6,879 | | | | 58,707 | |
| Total revenues | | | 93,574 | | | | 2,898,050 | | | | 816,572 | | | | 6,879 | | | | 3,815,075 | |
| | | | | | | | | | | | | | | | | | | | | |
| Rental operating costs | | | 5,261 | | | | 1,323,387 | | | | 42,064 | | | | (112,048 | ) | | | 1,258,664 | |
| Net Operating Income (NOI) | | | 88,313 | | | | 1,574,663 | | | | 774,508 | | | | 118,927 | | | | 2,556,411 | |
| | | | | | | | | | | | | | | | | | | | | |
| Gain on Sale - Model Homes | | | — | | | | — | | | | (21,997 | ) | | | — | | | | (21,997 | ) |
| Impairment of Model Homes | | | — | | | | — | | | | (144,688 | ) | | | — | | | | (144,688 | ) |
| | | | | | | | | | | | | | | | | | | | | |
| Adjusted NOI | | $ | 88,313 | | | $ | 1,574,663 | | | $ | 607,823 | | | $ | 118,927 | | | $ | 2,389,726 | |
| | | For the Three Months Ended June 30, 2025 | |
| | | | | | | | | | | | | | | | | | | | | |
| | | Retail | | | Office/Industrial | | | Model Homes | | | Corporate and Other | | | Total | |
| | | | | | | | | | | | | | | | | | | | | |
| Rental revenue | | $ | 93,574 | | | $ | 2,452,956 | | | $ | 1,019,301 | | | $ | — | | | $ | 3,565,831 | |
| Recovery revenue | | | - | | | | 715,922 | | | | — | | | | — | | | | 715,922 | |
| Other operating revenue | | | - | | | | 64,893 | | | | 428 | | | | 31,666 | | | | 96,987 | |
| Total revenues | | | 93,574 | | | | 3,233,771 | | | | 1,019,729 | | | | 31,666 | | | | 4,378,740 | |
| | | | | | | | | | | | | | | | | | | | | |
| Rental operating costs | | | 4,824 | | | | 1,549,497 | | | | 49,940 | | | | (141,656 | ) | | | 1,462,605 | |
| Net Operating Income (NOI) | | | 88,750 | | | | 1,684,274 | | | | 969,789 | | | | 173,322 | | | | 2,916,135 | |
| | | | | | | | | | | | | | | | | | | | | |
| Gain on Sale - Model Home | | | — | | | | — | | | | 323,359 | | | | — | | | | 323,359 | |
| Impairment of Model Homes | | | — | | | | — | | | | (90,769 | ) | | | — | | | | (90,769 | ) |
| | | | | | | | | | | | | | | | | | | | | |
| Adjusted NOI | | $ | 88,750 | | | $ | 1,684,274 | | | $ | 1,202,379 | | | $ | 173,322 | | | $ | 3,148,725 | |
| | | For the Six Months Ended June 30, 2026 | |
| | | | | | | | | | | | | | | | | | | | | |
| | | Retail | | | Office/Industrial | | | Model Homes | | | Corporate and Other | | | Total | |
| | | | | | | | | | | | | | | | | | | | | |
| Rental revenue | | $ | 187,148 | | | $ | 4,682,717 | | | $ | 1,735,949 | | | $ | — | | | $ | 6,605,814 | |
| Recovery revenue | | | - | | | | 834,598 | | | | — | | | | — | | | | 834,598 | |
| Other operating revenue | | | - | | | | 134,115 | | | | 6,047 | | | | 7,301 | | | | 147,463 | |
| Total revenues | | | 187,148 | | | | 5,651,430 | | | | 1,741,996 | | | | 7,301 | | | | 7,587,875 | |
| | | | | | | | | | | | | | | | | | | | | |
| Rental operating costs | | | 10,093 | | | | 2,954,224 | | | | 90,941 | | | | (252,153 | ) | | | 2,803,105 | |
| Net Operating Income (NOI) | | | 177,055 | | | | 2,697,206 | | | | 1,651,055 | | | | 259,454 | | | | 4,784,770 | |
| | | | | | | | | | | | | | | | | | | | | |
| Gain on Sale - Model Homes | | | — | | | | — | | | | 150,099 | | | | — | | | | 150,099 | |
| Impairment of Model Homes | | | — | | | | — | | | | (220,327 | ) | | | — | | | | (220,327 | ) |
| | | | | | | | | | | | | | | | | | | | | |
| Adjusted NOI | | $ | 177,055 | | | $ | 2,697,206 | | | $ | 1,580,827 | | | $ | 259,454 | | | $ | 4,714,542 | |
| | | For the Six Months Ended June 30, 2025 | |
| | | | | | | | | | | | | | | | | | | | | |
| | | Retail | | | Office/Industrial | | | Model Homes | | | Corporate and Other | | | Total | |
| | | | | | | | | | | | | | | | | | | | | |
| Rental revenue | | $ | 300,013 | | | $ | 4,920,507 | | | $ | 1,934,822 | | | $ | — | | | $ | 7,155,342 | |
| Recovery revenue | | | 56,439 | | | | 1,102,401 | | | | — | | | | — | | | | 1,158,840 | |
| Other operating revenue | | | 400 | | | | 127,255 | | | | (1,326 | ) | | | 63,414 | | | | 189,743 | |
| Total revenues | | | 356,852 | | | | 6,150,163 | | | | 1,933,496 | | | | 63,414 | | | | 8,503,925 | |
| | | | | | | | | | | | | | | | | | | | | |
| Rental operating costs | | | 105,392 | | | | 3,167,862 | | | | 98,097 | | | | (296,103 | ) | | | 3,075,248 | |
| Net Operating Income (NOI) | | | 251,460 | | | | 2,982,301 | | | | 1,835,399 | | | | 359,517 | | | | 5,428,677 | |
| | | | | | | | | | | | | | | | | | | | | |
| Gain on Sale - Model Home | | | — | | | | — | | | | 564,258 | | | | — | | | | 564,258 | |
| Impairment of Model Homes | | | — | | | | — | | | | (117,712 | ) | | | — | | | | (117,712 | ) |
| | | | | | | | | | | | | | | | | | | | | |
| Adjusted NOI | | $ | 251,460 | | | $ | 2,982,301 | | | $ | 2,281,945 | | | $ | 359,517 | | | $ | 5,875,223 | |
|
| Segment Reporting [Table Text Block] |
| | | For the Three Months Ended June 30, 2026 | |
| | | | | | | | | | | | | | | | | | | | | |
| | | Retail | | | Office/Industrial | | | Model Homes | | | Corporate and Other | | | Total | |
| Revenues: | | | | | | | | | | | | | | | | | | | | |
| Rental income | | $ | 93,574 | | | $ | 2,846,734 | | | $ | 816,060 | | | $ | — | | | $ | 3,756,368 | |
| Fees and other income | | | - | | | | 51,316 | | | | 512 | | | | 6,879 | | | | 58,707 | |
| Total revenue | | | 93,574 | | | | 2,898,050 | | | | 816,572 | | | | 6,879 | | | | 3,815,075 | |
| Costs and expenses: | | | | | | | | | | | | | | | | | | | | |
| Rental operating costs | | | 5,261 | | | | 1,323,387 | | | | 42,064 | | | | (112,048 | ) | | | 1,258,664 | |
| General and administrative | | | — | | | | 20 | | | | 225,959 | | | | 1,115,318 | | | | 1,341,297 | |
| Depreciation and amortization | | | 22,928 | | | | 694,602 | | | | 180,707 | | | | 473 | | | | 898,710 | |
| Impairment of goodwill and real estate assets | | | — | | | | 2,833,462 | | | | 144,688 | | | | — | | | | 2,978,150 | |
| Total costs and expenses | | | 28,189 | | | | 4,851,471 | | | | 593,418 | | | | 1,003,743 | | | | 6,476,821 | |
| Other income (expense): | | | | | | | | | | | | | | | | | | | | |
| Interest expense - mortgage notes | | | (38,728 | ) | | | (670,352 | ) | | | (441,573 | ) | | | (1,279 | ) | | | (1,151,932 | ) |
| Interest and other income, net | | | — | | | | — | | | | 8 | | | | 5,198 | | | | 5,206 | |
| Net loss in Conduit Pharmaceuticals marketable securities (see footnote 9) | | | — | | | | — | | | | — | | | | 5,743 | | | | 5,743 | |
| Gain on sales of real estate, net | | | — | | | | — | | | | (21,997 | ) | | | — | | | | (21,997 | ) |
| Gain on disposition of assets and liabilities, net | | | — | | | | — | | | | — | | | | — | | | | - | |
| Income tax (expense) benefit | | | — | | | | (2,000 | ) | | | (3,630 | ) | | | (21,000 | ) | | | (26,630 | ) |
| Total other income (expense), net | | | (38,728 | ) | | | (672,352 | ) | | | (467,192 | ) | | | (11,338 | ) | | | (1,189,610 | ) |
| Net income (loss) | | | 26,657 | | | | (2,625,773 | ) | | | (244,038 | ) | | | (1,008,202 | ) | | | (3,851,356 | ) |
| Less: Income attributable to noncontrolling interests | | | — | | | | (11,438 | ) | | | 51,668 | | | | — | | | | 40,230 | |
| Net income (loss) attributable to Presidio Property Trust, Inc. stockholders | | $ | 26,657 | | | $ | (2,637,211 | ) | | $ | (192,370 | ) | | $ | (1,008,202 | ) | | $ | (3,811,126 | ) |
| | | For the Three Months Ended June 30, 2025 | |
| | | | | | | | | | | | | | | | | | | | | |
| | | Retail | | | Office/Industrial | | | Model Homes | | | Corporate and Other | | | Total | |
| Revenues: | | | | | | | | | | | | | | | | | | | | |
| Rental income | | $ | 93,574 | | | $ | 3,168,878 | | | $ | 1,019,301 | | | $ | — | | | $ | 4,281,753 | |
| Fees and other income | | | - | | | | 64,893 | | | | 428 | | | | 31,666 | | | | 96,987 | |
| Total revenue | | | 93,574 | | | | 3,233,771 | | | | 1,019,729 | | | | 31,666 | | | | 4,378,740 | |
| Costs and expenses: | | | | | | | | | | | | | | | | | | | | |
| Rental operating costs | | | 4,824 | | | | 1,549,497 | | | | 49,940 | | | | (141,656 | ) | | | 1,462,605 | |
| General and administrative | | | — | | | | — | | | | 187,935 | | | | 1,035,723 | | | | 1,223,658 | |
| Depreciation and amortization | | | 22,928 | | | | 955,575 | | | | 231,954 | | | | 1,234 | | | | 1,211,691 | |
| Impairment of goodwill and real estate assets | | | — | | | | 4,226,620 | | | | 90,769 | | | | — | | | | 4,317,389 | |
| Total costs and expenses | | | 27,752 | | | | 6,731,692 | | | | 560,598 | | | | 895,301 | | | | 8,215,343 | |
| Other income (expense): | | | | | | | | | | | | | | | | | | | | |
| Interest expense - mortgage notes | | | (39,942 | ) | | | (921,953 | ) | | | (514,636 | ) | | | (1,339 | ) | | | (1,477,870 | ) |
| Interest and other income, net | | | — | | | | — | | | | 8 | | | | 5,198 | | | | 5,206 | |
| Net gain in Conduit Pharmaceuticals marketable securities (see footnote 9) | | | — | | | | — | | | | — | | | | (7,802 | ) | | | (7,802 | ) |
| Gain on sales of real estate, net | | | — | | | | — | | | | 323,359 | | | | — | | | | 323,359 | |
| Income tax (expense) benefit | | | — | | | | — | | | | (30,310 | ) | | | (23,600 | ) | | | (53,910 | ) |
| Total other income (expense), net | | | (39,942 | ) | | | (921,953 | ) | | | (221,579 | ) | | | (27,543 | ) | | | (1,211,017 | ) |
| Net income (loss) | | | 25,880 | | | | (4,419,874 | ) | | | 237,552 | | | | (891,178 | ) | | | (5,047,620 | ) |
| Less: Income attributable to noncontrolling interests | | | — | | | | (11,655 | ) | | | (217,250 | ) | | | — | | | | (228,905 | ) |
| Net income (loss) attributable to Presidio Property Trust, Inc. stockholders | | $ | 25,880 | | | $ | (4,431,529 | ) | | $ | 20,302 | | | $ | (891,178 | ) | | $ | (5,276,525 | ) |
| | | For the Six Months Ended June 30, 2026 | |
| | | | | | | | | | | | | | | | | | | | | |
| | | Retail | | | Office/Industrial | | | Model Homes | | | Corporate and Other | | | Total | |
| Revenues: | | | | | | | | | | | | | | | | | | | | |
| Rental income | | $ | 187,148 | | | $ | 5,517,315 | | | $ | 1,735,949 | | | $ | — | | | $ | 7,440,412 | |
| Fees and other income | | | — | | | | 134,115 | | | | 6,047 | | | | 7,301 | | | | 147,463 | |
| Total revenue | | | 187,148 | | | | 5,651,430 | | | | 1,741,996 | | | | 7,301 | | | | 7,587,875 | |
| Costs and expenses: | | | | | | | | | | | | | | | | | | | | |
| Rental operating costs | | | 10,093 | | | | 2,954,224 | | | | 90,941 | | | | (252,153 | ) | | | 2,803,105 | |
| General and administrative | | | — | | | | 17,519 | | | | 452,842 | | | | 2,544,759 | | | | 3,015,120 | |
| Depreciation and amortization | | | 45,856 | | | | 1,478,878 | | | | 371,998 | | | | 947 | | | | 1,897,679 | |
| Impairment of goodwill and real estate assets | | | — | | | | 3,282,197 | | | | 220,326 | | | | — | | | | 3,502,523 | |
| Total costs and expenses | | | 55,949 | | | | 7,732,818 | | | | 1,136,107 | | | | 2,293,553 | | | | 11,218,427 | |
| Other income (expense): | | | | | | | | | | | | | | | | | | | | |
| Interest expense - mortgage notes | | | (81,845 | ) | | | (2,213,435 | ) | | | (904,131 | ) | | | (2,595 | ) | | | (3,202,006 | ) |
| Interest and other income, net | | | — | | | | — | | | | 15 | | | | 10,340 | | | | 10,355 | |
| Net loss in Conduit Pharmaceuticals marketable securities (see footnote 9) | | | — | | | | — | | | | — | | | | 7,728 | | | | 7,728 | |
| Gain on sales of real estate, net | | | — | | | | — | | | | 150,099 | | | | — | | | | 150,099 | |
| Gain on disposition of assets and liabilities, net | | | — | | | | 3,416,501 | | | | — | | | | — | | | | 3,416,501 | |
| Income tax (expense) benefit | | | — | | | | (2,000 | ) | | | (19,287 | ) | | | (23,400 | ) | | | (44,687 | ) |
| Total other income (expense), net | | | (81,845 | ) | | | 1,201,066 | | | | (773,304 | ) | | | (7,927 | ) | | | 337,990 | |
| Net income (loss) | | | 49,354 | | | | (880,322 | ) | | | (167,415 | ) | | | (2,294,179 | ) | | | (3,292,562 | ) |
| Less: Income attributable to noncontrolling interests | | | — | | | | (9,385 | ) | | | (68,270 | ) | | | — | | | | (77,655 | ) |
| Net income (loss) attributable to Presidio Property Trust, Inc. stockholders | | $ | 49,354 | | | $ | (889,707 | ) | | $ | (235,685 | ) | | $ | (2,294,179 | ) | | $ | (3,370,217 | ) |
| | | For the Six Months Ended June 30, 2025 | |
| | | | | | | | | | | | | | | | | | | | | |
| | | Retail | | | Office/Industrial | | | Model Homes | | | Corporate and Other | | | Total | |
| Revenues: | | | | | | | | | | | | | | | | | | | | |
| Rental income | | $ | 356,452 | | | $ | 6,022,908 | | | $ | 1,934,822 | | | $ | — | | | $ | 8,314,182 | |
| Fees and other income | | | 400 | | | | 127,255 | | | | (1,326 | ) | | | 63,414 | | | | 189,743 | |
| Total revenue | | | 356,852 | | | | 6,150,163 | | | | 1,933,496 | | | | 63,414 | | | | 8,503,925 | |
| Costs and expenses: | | | | | | | | | | | | | | | | | | | | |
| Rental operating costs | | | 105,392 | | | | 3,167,862 | | | | 98,097 | | | | (296,103 | ) | | | 3,075,248 | |
| General and administrative | | | — | | | | 16,850 | | | | 417,895 | | | | 2,450,889 | | | | 2,885,634 | |
| Depreciation and amortization | | | 54,617 | | | | 1,954,744 | | | | 443,967 | | | | 2,468 | | | | 2,455,796 | |
| Impairment of goodwill and real estate assets | | | — | | | | 4,226,620 | | | | 117,712 | | | | — | | | | 4,344,332 | |
| Total costs and expenses | | | 160,009 | | | | 9,366,076 | | | | 1,077,671 | | | | 2,157,254 | | | | 12,761,010 | |
| Other income (expense): | | | | | | | | | | | | | | | | | | | | |
| Interest expense - mortgage notes | | | (198,039 | ) | | | (1,813,284 | ) | | | (974,346 | ) | | | (2,672 | ) | | | (2,988,341 | ) |
| Interest and other income, net | | | — | | | | — | | | | 15 | | | | 10,339 | | | | 10,354 | |
| Net gain in Conduit Pharmaceuticals marketable securities (see footnote 9) | | | — | | | | — | | | | — | | | | (184,459 | ) | | | (184,459 | ) |
| Gain on sales of real estate, net | | | 4,213,068 | | | | — | | | | 564,259 | | | | — | | | | 4,777,327 | |
| Income tax (expense) benefit | | | — | | | | — | | | | (52,481 | ) | | | 23,980 | | | | (28,501 | ) |
| Total other income (expense), net | | | 4,015,029 | | | | (1,813,284 | ) | | | (462,553 | ) | | | (152,812 | ) | | | 1,586,380 | |
| Net income (loss) | | | 4,211,872 | | | | (5,029,197 | ) | | | 393,272 | | | | (2,246,652 | ) | | | (2,670,705 | ) |
| Less: Income attributable to noncontrolling interests | | | — | | | | (29,614 | ) | | | (310,854 | ) | | | — | | | | (340,468 | ) |
| Net income (loss) attributable to Presidio Property Trust, Inc. stockholders | | $ | 4,211,872 | | | $ | (5,058,811 | ) | | $ | 82,418 | | | $ | (2,246,652 | ) | | $ | (3,011,173 | ) |
|