COVID-19 Pandemic (Details) - USD ($)	1 Months Ended	7 Months Ended	12 Months Ended
	May 30, 2020	Oct. 31, 2020	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
Increase in expense for reserve of uncollectible rents			$ 300,000
Increase in expense for reserve of uncollectible rents with consolidated impact			200,000
Security deposit as accounts receivables		$ 1,408,000	1,408,000	$ 2,278,000	$ 2,212,000
Uncollected rents		300,000	300,000
Rental revenue deemed uncollectible			1,400,000
Deferrals of rent			206,000
Rent abatements			238,000
Tenant improvements related to Cobb Theatre with net book value			7,300,000
Loss of base rent and additional rent			1,100,000
Unamortized leasing commissions fully expensed in a net impact of net income			900,000
Cost savings			1,100,000
Straight-line rent receivable		400,000	400,000
Unamortized leasing commissions		200,000	200,000
Deferred payments of loan		1,013,000	1,013,000
Special committee fees			5,100,000
Cash balance		36,900,000	36,900,000
Available line of credit		$ 13,000,000	13,000,000
Repayments Of Loan			162,000
FREIT [Member]
Rental revenue deemed uncollectible			900,000
Deferrals of rent			192,000
Rent abatements			156,000
Tenant improvements related to Cobb Theatre with net book value			4,400,000
Loss of base rent and additional rent			700,000
Unamortized leasing commissions fully expensed in a net impact of net income			500,000
Cost savings			800,000
Two Retired Trustees [Member]
Deferred compensation paid			5,000,000
Executive officers and members of Board of Trustees [Member]
Percentage reduction in fees, salaries and retainers payable	30.00%
Commercial Properties [Member]
Average cash realization percentage		74.00%
Security deposit as accounts receivables		$ 387,000	$ 387,000