Investments in Joint Ventures - Schedule of Investments in Joint Ventures (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Schedule of Equity Method Investments [Line Items]
Total assets	$ 722,782	$ 728,485
Capital – Third Parties	426,702	423,103
Total liabilities and equity	722,782	728,485
Brooksville Quarry, LLC
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	14,352	14,354
Cash and restricted cash	136	143
Unrealized rents & receivables	0	0
Deferred costs	4	1
Total assets	14,492	14,498
Secured notes payable	0	0
Other liabilities	43	0
Capital – FRP	7,554	7,579
Capital – Third Parties	6,895	6,919
Total liabilities and equity	14,492	14,498
BC FRP Realty, LLC
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	21,374	20,956
Cash and restricted cash	1,402	144
Unrealized rents & receivables	443	517
Deferred costs	219	313
Total assets	23,438	21,930
Secured notes payable	14,112	10,315
Other liabilities	268	285
Capital – FRP	4,529	5,665
Capital – Third Parties	4,529	5,665
Total liabilities and equity	23,438	21,930
Lending ventures
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	11,292	16,007
Cash and restricted cash	0	0
Unrealized rents & receivables	0	0
Deferred costs	0	0
Total assets	11,292	16,007
Secured notes payable	(3,708)	(10,157)
Other liabilities	187	0
Capital – FRP	14,813	26,164
Capital – Third Parties	0	0
Total liabilities and equity	11,292	16,007
Total Multifamily JV’s
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	440,326	439,691
Cash and restricted cash	9,701	11,066
Unrealized rents & receivables	6,986	7,216
Deferred costs	6,702	6,631
Total assets	463,715	464,604
Secured notes payable	272,598	272,155
Other liabilities	7,613	7,349
Capital – FRP	106,647	109,031
Capital – Third Parties	76,857	76,069
Total liabilities and equity	463,715	464,604
Grand Total
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	487,344	491,008
Cash and restricted cash	11,239	11,353
Unrealized rents & receivables	7,429	7,733
Deferred costs	6,925	6,945
Total assets	512,937	517,039
Secured notes payable	283,002	272,313
Other liabilities	8,111	7,634
Capital – FRP	133,543	148,439
Capital – Third Parties	88,281	88,653
Total liabilities and equity	$ 512,937	$ 517,039