Company’s investments in unconsolidated joint ventures (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]
Total investments	$ 166,066
Total assets of the partnership	709,166	$ 701,084	$ 678,190
Profit (loss) of the partnership	4,882	4,047	40,094
Share of profit (loss) of the partnership	(11,937)	(5,721)	$ (5,754)
Real Estate Total Assets [Member]
Schedule of Equity Method Investments [Line Items]
Total assets of the partnership	528,344	510,640
Profit (loss) of the partnership	(23,736)
Real Estate Partnership Net Income Loss [Member]
Schedule of Equity Method Investments [Line Items]
Share of profit (loss) of the partnership	$ (11,937)
Brooksville Quarry L L C [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	50.00%
Total investments	$ 7,552
Profit (loss) of the partnership	(82)
Share of profit (loss) of the partnership	(41)
Brooksville Quarry L L C [Member] | Real Estate Total Assets [Member]
Schedule of Equity Method Investments [Line Items]
Total assets of the partnership	$ 14,439	14,374
B C F R P Realty L L C [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	50.00%
Total investments	$ 5,039
Profit (loss) of the partnership	(632)
Share of profit (loss) of the partnership	(316)
B C F R P Realty L L C [Member] | Real Estate Total Assets [Member]
Schedule of Equity Method Investments [Line Items]
Total assets of the partnership	$ 22,454	21,825
Buzzard Point Sponsor Partnership [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	50.00%
Total investments	$ 2,326
Profit (loss) of the partnership	0
Share of profit (loss) of the partnership	0
Buzzard Point Sponsor Partnership [Member] | Real Estate Total Assets [Member]
Schedule of Equity Method Investments [Line Items]
Total assets of the partnership	$ 4,652	2,906
Bryant Street Partnerships [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	61.36%
Total investments	$ 71,786
Profit (loss) of the partnership	(10,296)
Share of profit (loss) of the partnership	(4,558)
Bryant Street Partnerships [Member] | Real Estate Total Assets [Member]
Schedule of Equity Method Investments [Line Items]
Total assets of the partnership	202,634	199,774
Lending Ventures [Member]
Schedule of Equity Method Investments [Line Items]
Total investments	27,695
Profit (loss) of the partnership	0
Share of profit (loss) of the partnership	0
Lending Ventures [Member] | Real Estate Total Assets [Member]
Schedule of Equity Method Investments [Line Items]
Total assets of the partnership	$ 17,117	5,577
Estero Partnership [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	16.00%
Total investments	$ 3,600
Profit (loss) of the partnership	0
Share of profit (loss) of the partnership	0
Estero Partnership [Member] | Real Estate Total Assets [Member]
Schedule of Equity Method Investments [Line Items]
Total assets of the partnership	$ 38,652	38,505
Verge [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	61.37%
Total investments	$ 36,665
Profit (loss) of the partnership	(9,039)
Share of profit (loss) of the partnership	(5,547)
Verge [Member] | Real Estate Total Assets [Member]
Schedule of Equity Method Investments [Line Items]
Total assets of the partnership	$ 130,173	131,128
Greenville Partnerships [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	40.00%
Total investments	$ 11,403
Profit (loss) of the partnership	(3,687)
Share of profit (loss) of the partnership	(1,475)
Greenville Partnerships [Member] | Real Estate Total Assets [Member]
Schedule of Equity Method Investments [Line Items]
Total assets of the partnership	$ 98,223	$ 96,551