Selected quarterly financial data (unaudited) (Details) - Schedule of quarterly results of operation - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended												12 Months Ended
	Sep. 09, 2022	Oct. 31, 2022		Jul. 31, 2022		Apr. 30, 2022		Jan. 31, 2022		Oct. 31, 2021	Jul. 31, 2021	Apr. 30, 2021	Jan. 31, 2021	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2020
Schedule Of Quarterly Results Of Operation Abstract
Revenue		$ 7,048		$ 6,959		$ 6,615		$ 10,649		$ 12,191	$ 12,542	$ 12,804	$ 12,754	$ 31,271	$ 50,291	$ 52,727
Expenses, net		7,770		5,145		7,616		(58,504)	[1]	12,176	12,226	12,867	11,975	(37,973)	49,244
Net income (loss)		(722)		1,814		(1,001)		69,153		15	316	(63)	779	69,244	1,047	17,320
Net (income) loss attributable to noncontrolling interests in subsidiaries		168		(693)	[2]	649		(23,376)	[1]	136	(107)	72	(221)	(23,252)	(120)	3,233
Net income (loss) attributable to common equity		$ (554)		$ 1,121		$ (352)		$ 45,777		$ 151	$ 209	$ 9	$ 558	$ 45,992	$ 927	$ 20,553
Earnings (Loss) per share - basic (in Dollars per share)	$ 0.17	$ (0.08)	[3]	$ 0.16		$ (0.05)	[4]	$ 6.51		$ 0.02	$ 0.03		$ 0.08	$ 6.52	$ 0.13	$ 2.94
Earnings (Loss) per share - diluted (in Dollars per share)	$ 0.17	(0.08)	[3]	$ 0.16		(0.05)	[4]	6.45						6.45	0.13	$ 2.94
Dividends declared per share (in Dollars per share)		$ 9				$ 0.1		$ 0.1		$ 0.1	$ 0.05	$ 0.05	$ 0.05	$ 9.2	$ 0.25

[1] Includes $70 million gain on sale of the Maryland properties with a consolidated impact to FREIT of approximately $46.3 million ($6.58 per share basic and $6.52 per share diluted).

[2] Includes $1.4 million realized gain on Wayne PSC interest rate swap termination with a consolidated impact to FREIT of approximately $0.6 million ($0.08 per share basic and diluted).

[3] Includes stock compensation expense of approximately $1.2 million for the incremental compensation cost attributed to the revaluation of the stock options modified on September 9, 2022 ($0.17 per share basic and diluted).

[4] Includes $1.2 million reduction in gain on sale of the Maryland properties with a consolidated impact to FREIT of approximately $0.7 million ($0.10 per share basic and diluted).