SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION (Schedule of Properties) (Details) - USD ($) $ in Thousands		12 Months Ended
		Oct. 31, 2020		Oct. 31, 2019		Oct. 31, 2018	Oct. 31, 2020
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances							$ 307,240
Initial Cost to Company
Land							62,954
Buildings and Improvements							115,523
Costs Capitalized Subsequent to Acquisition
Land							13,139
Improvements							194,237
Carrying Costs
Gross Amount at Which Carried at Close of Period
Land							76,093
Buildings and Improvements							309,760
Total		$ 448,866	[1]	$ 456,658		$ 433,288	385,853	[1]
Accumulated Depreciation		118,363		111,967		101,194	107,137
Real estate:
Balance, beginning of year		448,866	[1]	456,658		433,288
Additions - Buildings and improvements		2,055		3,386		4,562
Disposal: Buildings and improvements		(585)		(240)		(742)
Tenant improvement write-off due to COVID-19		(8,910)
Acquisition of property						19,550
Sale of property				(10,938)
Deconsolidation of subsidiary		(55,573)
Balance, end of year		385,853	[1]	448,866	[1]	456,658
Accumulated depreciation:
Balance, beginning of year		118,363		111,967		101,194
Additions - Charged to operating expenses		10,341		11,339		11,515
Tenant improvement write-off due to COVID-19 - Charged to operating expenses		(1,637)
Disposal - Buildings and improvements		(583)		(217)		(742)
Sale of property				(4,726)
Deconsolidation of subsidiary		(19,347)
Balance, end of year		107,137		$ 118,363		$ 111,967
Residential Properties [Member] | Steuben Arms, River Edge, NJ [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances							9,789
Initial Cost to Company
Land							364
Buildings and Improvements							1,773
Costs Capitalized Subsequent to Acquisition
Land
Improvements							1,506
Gross Amount at Which Carried at Close of Period
Land							364
Buildings and Improvements							3,279
Total	[1]	3,643					3,643
Accumulated Depreciation		2,937					2,937
Real estate:
Balance, end of year	[1]	3,643
Accumulated depreciation:
Balance, end of year		$ 2,937
Residential Properties [Member] | Steuben Arms, River Edge, NJ [Member] | Minimum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		7 years
Residential Properties [Member] | Steuben Arms, River Edge, NJ [Member] | Maximum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		40 years
Residential Properties [Member] | Berdan Court, Wayne, NJ [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances							28,815
Initial Cost to Company
Land							250
Buildings and Improvements							2,206
Costs Capitalized Subsequent to Acquisition
Land
Improvements							4,865
Gross Amount at Which Carried at Close of Period
Land							250
Buildings and Improvements							7,071
Total	[1]	$ 7,321					7,321
Accumulated Depreciation		5,791					5,791
Real estate:
Balance, end of year	[1]	7,321
Accumulated depreciation:
Balance, end of year		$ 5,791
Residential Properties [Member] | Berdan Court, Wayne, NJ [Member] | Minimum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		7 years
Residential Properties [Member] | Berdan Court, Wayne, NJ [Member] | Maximum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		40 years
Residential Properties [Member] | Westwood Hills, Westwood, NJ [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances							25,000
Initial Cost to Company
Land							3,849
Buildings and Improvements							11,546
Costs Capitalized Subsequent to Acquisition
Land
Improvements							2,826
Gross Amount at Which Carried at Close of Period
Land							3,849
Buildings and Improvements							14,372
Total	[1]	$ 18,221					18,221
Accumulated Depreciation		9,684					9,684
Real estate:
Balance, end of year	[1]	18,221
Accumulated depreciation:
Balance, end of year		$ 9,684
Residential Properties [Member] | Westwood Hills, Westwood, NJ [Member] | Minimum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		7 years
Residential Properties [Member] | Westwood Hills, Westwood, NJ [Member] | Maximum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		39 years
Residential Properties [Member] | Boulders - Rockaway, NJ [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances							15,050
Initial Cost to Company
Land							1,632
Buildings and Improvements
Costs Capitalized Subsequent to Acquisition
Land							3,386
Improvements							16,011
Gross Amount at Which Carried at Close of Period
Land							5,018
Buildings and Improvements							16,011
Total	[1]	$ 21,029					21,029
Accumulated Depreciation		6,185					6,185
Real estate:
Balance, end of year	[1]	21,029
Accumulated depreciation:
Balance, end of year		$ 6,185
Residential Properties [Member] | Boulders - Rockaway, NJ [Member] | Minimum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		7 years
Residential Properties [Member] | Boulders - Rockaway, NJ [Member] | Maximum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		40 years
Residential Properties [Member] | Regency Club - Middletown, NY [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances							15,255
Initial Cost to Company
Land							2,833
Buildings and Improvements							17,792
Costs Capitalized Subsequent to Acquisition
Land
Improvements							774
Gross Amount at Which Carried at Close of Period
Land							2,833
Buildings and Improvements							18,566
Total	[1]	$ 21,399					21,399
Accumulated Depreciation		3,139					3,139
Cost for Federal income tax purposes							13,300
Real estate:
Balance, end of year	[1]	21,399
Accumulated depreciation:
Balance, end of year		$ 3,139
Residential Properties [Member] | Regency Club - Middletown, NY [Member] | Minimum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		7 years
Residential Properties [Member] | Regency Club - Middletown, NY [Member] | Maximum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		40 years
Residential Properties [Member] | Icon - Baltimore, MD [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances							65,186
Initial Cost to Company
Land							5,871
Buildings and Improvements
Costs Capitalized Subsequent to Acquisition
Land
Improvements							87,770
Gross Amount at Which Carried at Close of Period
Land							5,871
Buildings and Improvements							87,770
Total	[1]	$ 93,641					93,641
Accumulated Depreciation		9,347					9,347
Real estate:
Balance, end of year	[1]	93,641
Accumulated depreciation:
Balance, end of year		$ 9,347
Residential Properties [Member] | Icon - Baltimore, MD [Member] | Minimum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		7 years
Residential Properties [Member] | Icon - Baltimore, MD [Member] | Maximum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		40 years
Residential Properties [Member] | Station Place, Red Bank [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances							12,181
Initial Cost to Company
Land							8,793
Buildings and Improvements							10,757
Costs Capitalized Subsequent to Acquisition
Land
Improvements							1
Gross Amount at Which Carried at Close of Period
Land							8,793
Buildings and Improvements							10,758
Total	[1]	$ 19,551					19,551
Accumulated Depreciation		785					785
Cost for Federal income tax purposes							4,200
Real estate:
Balance, end of year	[1]	19,551
Accumulated depreciation:
Balance, end of year		$ 785
Residential Properties [Member] | Station Place, Red Bank [Member] | Minimum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		7 years
Residential Properties [Member] | Station Place, Red Bank [Member] | Maximum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		40 years
Westwood Plaza and Damascus Shopping Center [Member] | Damascus Shopping Center, Damascus, MD [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances							18,824
Initial Cost to Company
Land							2,950
Buildings and Improvements							6,987
Costs Capitalized Subsequent to Acquisition
Land							6,296
Improvements							17,589
Gross Amount at Which Carried at Close of Period
Land							9,246
Buildings and Improvements							24,576
Total	[1]	$ 33,822					33,822
Accumulated Depreciation		8,384					8,384
Real estate:
Balance, end of year	[1]	33,822
Accumulated depreciation:
Balance, end of year		$ 8,384
Westwood Plaza and Damascus Shopping Center [Member] | Damascus Shopping Center, Damascus, MD [Member] | Minimum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		5 years
Westwood Plaza and Damascus Shopping Center [Member] | Damascus Shopping Center, Damascus, MD [Member] | Maximum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		39 years 6 months
Westwood Plaza and Damascus Shopping Center [Member] | Franklin Crossing, Franklin Lakes, NJ [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances
Initial Cost to Company
Land							29
Buildings and Improvements
Costs Capitalized Subsequent to Acquisition
Land							3,382
Improvements							7,426
Gross Amount at Which Carried at Close of Period
Land							3,411
Buildings and Improvements							7,426
Total	[1]	$ 10,837					10,837
Accumulated Depreciation		4,387					4,387
Real estate:
Balance, end of year	[1]	10,837
Accumulated depreciation:
Balance, end of year		$ 4,387
Westwood Plaza and Damascus Shopping Center [Member] | Franklin Crossing, Franklin Lakes, NJ [Member] | Minimum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		5 years
Westwood Plaza and Damascus Shopping Center [Member] | Franklin Crossing, Franklin Lakes, NJ [Member] | Maximum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		39 years 6 months
Westwood Plaza and Damascus Shopping Center [Member] | Glen Rock, NJ [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances
Initial Cost to Company
Land							12
Buildings and Improvements							36
Costs Capitalized Subsequent to Acquisition
Land
Improvements							235
Gross Amount at Which Carried at Close of Period
Land							12
Buildings and Improvements							271
Total	[1]	$ 283					283
Accumulated Depreciation		219					219
Real estate:
Balance, end of year	[1]	283
Accumulated depreciation:
Balance, end of year		$ 219
Westwood Plaza and Damascus Shopping Center [Member] | Glen Rock, NJ [Member] | Minimum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		5 years
Westwood Plaza and Damascus Shopping Center [Member] | Glen Rock, NJ [Member] | Maximum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		25 years
Westwood Plaza and Damascus Shopping Center [Member] | Westridge Square S/C, Frederick, MD [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances							21,775
Initial Cost to Company
Land							9,135
Buildings and Improvements							19,159
Costs Capitalized Subsequent to Acquisition
Land							(1)
Improvements							4,791
Gross Amount at Which Carried at Close of Period
Land							9,134
Buildings and Improvements							23,950
Total	[1]	$ 33,084					33,084
Accumulated Depreciation		20,556					20,556
Real estate:
Balance, end of year	[1]	33,084
Accumulated depreciation:
Balance, end of year		$ 20,556
Westwood Plaza and Damascus Shopping Center [Member] | Westridge Square S/C, Frederick, MD [Member] | Minimum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		5 years
Westwood Plaza and Damascus Shopping Center [Member] | Westridge Square S/C, Frederick, MD [Member] | Maximum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		31 years 6 months
Westwood Plaza and Damascus Shopping Center [Member] | Westwood Plaza, Westwood, NJ [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances							18,695
Initial Cost to Company
Land							6,889
Buildings and Improvements							6,416
Costs Capitalized Subsequent to Acquisition
Land
Improvements							2,374
Gross Amount at Which Carried at Close of Period
Land							6,889
Buildings and Improvements							8,790
Total	[1]	$ 15,679					15,679
Accumulated Depreciation		8,601					8,601
Real estate:
Balance, end of year	[1]	15,679
Accumulated depreciation:
Balance, end of year		$ 8,601
Westwood Plaza and Damascus Shopping Center [Member] | Westwood Plaza, Westwood, NJ [Member] | Minimum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		5 years
Westwood Plaza and Damascus Shopping Center [Member] | Westwood Plaza, Westwood, NJ [Member] | Maximum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		31 years 6 months
Westwood Plaza and Damascus Shopping Center [Member] | Preakness S/C, Wayne, NJ [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances							23,336
Initial Cost to Company
Land							9,280
Buildings and Improvements							24,217
Costs Capitalized Subsequent to Acquisition
Land
Improvements							2,802
Gross Amount at Which Carried at Close of Period
Land							9,280
Buildings and Improvements							27,019
Total	[1]	$ 36,299					36,299
Accumulated Depreciation		12,509					12,509
Real estate:
Balance, end of year	[1]	36,299
Accumulated depreciation:
Balance, end of year		$ 12,509
Westwood Plaza and Damascus Shopping Center [Member] | Preakness S/C, Wayne, NJ [Member] | Minimum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		5 years
Westwood Plaza and Damascus Shopping Center [Member] | Preakness S/C, Wayne, NJ [Member] | Maximum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		39 years 6 months
Westwood Plaza and Damascus Shopping Center [Member] | The Rotunda, Baltimore, MD [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances							53,334
Initial Cost to Company
Land							10,392
Buildings and Improvements							14,634
Costs Capitalized Subsequent to Acquisition
Land							232
Improvements							45,267
Gross Amount at Which Carried at Close of Period
Land							10,624
Buildings and Improvements							59,901
Total	[1]	$ 70,525					70,525
Accumulated Depreciation		14,613					14,613
Cost for Federal income tax purposes							162,200
Real estate:
Balance, end of year	[1]	70,525
Accumulated depreciation:
Balance, end of year		$ 14,613
Westwood Plaza and Damascus Shopping Center [Member] | The Rotunda, Baltimore, MD [Member] | Minimum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		5 years
Westwood Plaza and Damascus Shopping Center [Member] | The Rotunda, Baltimore, MD [Member] | Maximum [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		40 years
Land Leased [Member] | Rockaway, NJ [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances
Initial Cost to Company
Land							114
Buildings and Improvements
Costs Capitalized Subsequent to Acquisition
Land
Improvements
Gross Amount at Which Carried at Close of Period
Land							114
Buildings and Improvements
Total	[1]	$ 114					114
Accumulated Depreciation
Real estate:
Balance, end of year	[1]	114
Accumulated depreciation:
Balance, end of year
Vacant Land [Member] | Rockaway, NJ [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances
Initial Cost to Company
Land							51
Costs Capitalized Subsequent to Acquisition
Land
Improvements
Gross Amount at Which Carried at Close of Period
Land							51
Buildings and Improvements
Total	[1]	51					51
Accumulated Depreciation
Real estate:
Balance, end of year	[1]	51
Accumulated depreciation:
Balance, end of year
Vacant Land [Member] | Franklin Lakes, NJ [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances
Initial Cost to Company
Land							224
Buildings and Improvements
Costs Capitalized Subsequent to Acquisition
Land							(156)
Improvements
Gross Amount at Which Carried at Close of Period
Land							68
Buildings and Improvements
Total	[1]	68					68
Accumulated Depreciation
Real estate:
Balance, end of year	[1]	68
Accumulated depreciation:
Balance, end of year
Vacant Land [Member] | Wayne, NJ [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances
Initial Cost to Company
Land							286
Buildings and Improvements
Costs Capitalized Subsequent to Acquisition
Improvements
Gross Amount at Which Carried at Close of Period
Land							286
Buildings and Improvements
Total	[1]	286					286
Accumulated Depreciation
Real estate:
Balance, end of year	[1]	286
Accumulated depreciation:
Balance, end of year

[1] Total cost for each property is the same for federal income tax purposes, with the exception of Regency Club, Station Place and the Rotunda properties (Icon and The Rotunda) whose cost for federal income tax purposes is approximately $13.3 million, $4.2 million and $162.2 million, respectively.