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Investments in Apartment/Mixed-use as of December 31, 2022 (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Schedule of Equity Method Investments [Line Items] |  |
Investments in real estate, net | $ 497,609 | $ 493,324
Cash and cash equivalents | 9,319 | 7,937
Unrealized rents & receivables | 5,299 | 5,577
Deferred costs | 5,704 | 3,802
Total Assets | 699,896 | 701,084
Secured notes payable | 271,930 | 276,801
Other liabilities | 7,606 | 11,023
Capital – Third Parties | 409,876 | 407,145
Total Liabilities and Capital | 699,896 | 701,084
Real Estate Total Assets [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Assets | 517,931 | 510,640
Real Estate Partnership F R P [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Capital - FRP | 147,371 | 135,333
Real Estate Partnership Third Parties [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Capital – Third Parties | 91,024 | 87,483
Real Estate Partnership Total Liabilities And Capital [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Liabilities and Capital | 517,931 | 510,640
Buzzard Point Sponsor Partnership [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Investments in real estate, net | 0 | 0
Cash and cash equivalents | 0 | 0
Unrealized rents & receivables | 0 | 0
Deferred costs | 4,300 | 2,906
Secured notes payable | 0 | 0
Other liabilities | 0 | 0
Buzzard Point Sponsor Partnership [Member] | Real Estate Total Assets [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Assets | 4,300 | 2,906
Buzzard Point Sponsor Partnership [Member] | Real Estate Partnership F R P [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Capital - FRP | 2,150 | 1,453
Buzzard Point Sponsor Partnership [Member] | Real Estate Partnership Third Parties [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Capital – Third Parties | 2,150 | 1,453
Buzzard Point Sponsor Partnership [Member] | Real Estate Partnership Total Liabilities And Capital [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Liabilities and Capital | 4,300 | 2,906
Bryant Street Partnerships [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Investments in real estate, net | 189,926 | 192,904
Cash and cash equivalents | 1,137 | 1,349
Unrealized rents & receivables | 4,668 | 5,128
Deferred costs | 801 | 393
Secured notes payable | 116,884 | 129,263
Other liabilities | 2,553 | 2,338
Bryant Street Partnerships [Member] | Real Estate Total Assets [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Assets | 196,532 | 199,774
Bryant Street Partnerships [Member] | Real Estate Partnership F R P [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Capital - FRP | 59,440 | 53,553
Bryant Street Partnerships [Member] | Real Estate Partnership Third Parties [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Capital – Third Parties | 17,655 | 14,620
Bryant Street Partnerships [Member] | Real Estate Partnership Total Liabilities And Capital [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Liabilities and Capital | 196,532 | 199,774
Estero Partnership [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Investments in real estate, net | 33,787 | 33,008
Cash and cash equivalents | 4,725 | 5,497
Unrealized rents & receivables | 29 | 0
Deferred costs | 0 | 0
Secured notes payable | 16,000 | 16,000
Other liabilities | 12 | 5
Estero Partnership [Member] | Real Estate Total Assets [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Assets | 38,541 | 38,505
Estero Partnership [Member] | Real Estate Partnership F R P [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Capital - FRP | 3,605 | 3,600
Estero Partnership [Member] | Real Estate Partnership Third Parties [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Capital – Third Parties | 18,924 | 18,900
Estero Partnership [Member] | Real Estate Partnership Total Liabilities And Capital [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Liabilities and Capital | 38,541 | 38,505
Verge [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Investments in real estate, net | 129,828 | 130,616
Cash and cash equivalents | 1,917 | 359
Unrealized rents & receivables | 184 | 14
Deferred costs | 172 | 139
Secured notes payable | 71,664 | 66,584
Other liabilities | 1,166 | 5,328
Verge [Member] | Real Estate Total Assets [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Assets | 132,101 | 131,128
Verge [Member] | Real Estate Partnership F R P [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Capital - FRP | 36,421 | 36,348
Verge [Member] | Real Estate Partnership Third Parties [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Capital – Third Parties | 22,850 | 22,868
Verge [Member] | Real Estate Partnership Total Liabilities And Capital [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Liabilities and Capital | 132,101 | 131,128
Greenville Partnerships [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Investments in real estate, net | 97,201 | 95,883
Cash and cash equivalents | 1,304 | 567
Unrealized rents & receivables | 26 | 13
Deferred costs | 152 | 88
Secured notes payable | 67,382 | 64,954
Other liabilities | 2,705 | 3,014
Greenville Partnerships [Member] | Real Estate Total Assets [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Assets | 98,683 | 96,551
Greenville Partnerships [Member] | Real Estate Partnership F R P [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Capital - FRP | 11,102 | 11,087
Greenville Partnerships [Member] | Real Estate Partnership Third Parties [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Capital – Third Parties | 17,494 | 17,496
Greenville Partnerships [Member] | Real Estate Partnership Total Liabilities And Capital [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Liabilities and Capital | 98,683 | 96,551
Apartment Mixed Use [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Investments in real estate, net | 450,742 | 452,411
Cash and cash equivalents | 9,083 | 7,772
Unrealized rents & receivables | 4,907 | 5,155
Deferred costs | 5,425 | 3,526
Secured notes payable | 271,930 | 276,801
Other liabilities | 6,436 | 10,685
Apartment Mixed Use [Member] | Real Estate Total Assets [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Assets | 470,157 | 468,864
Apartment Mixed Use [Member] | Real Estate Partnership F R P [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Capital - FRP | 112,718 | 106,041
Apartment Mixed Use [Member] | Real Estate Partnership Third Parties [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Capital – Third Parties | 79,073 | 75,337
Apartment Mixed Use [Member] | Real Estate Partnership Total Liabilities And Capital [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Liabilities and Capital | $ 470,157 | $ 468,864

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