SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION (Schedule of Properties) (Details) - USD ($) $ in Thousands		12 Months Ended
		Oct. 31, 2017		Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2017
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances						$ 320,314
Initial Cost to Company
Land						64,679
Buildings and Improvements						151,070
Costs Capitalized Subsequent to Acquisition
Land						13,158
Improvements						204,381
Carrying Costs
Gross Amount at Which Carried at Close of Period
Land						77,837
Buildings and Improvements						355,451
Total		$ 429,445		$ 409,297	$ 354,032	433,288	[1]
Accumulated Depreciation		92,547		88,452	81,569	101,194
Real estate:
Balance, beginning of year		429,445		409,297	354,032
Buildings and improvements		6,602		26,206	55,265
Disposal: Buildings and improvements		(443)		(3,513)
Sale of property		(2,316)		(2,545)
Balance, end of year		433,288	[1]	429,445	409,297
Accumulated depreciation:
Balance, beginning of year		92,547		88,452	81,569
Additions - Charged to operating expenses		10,667		7,852	6,883
Disposal - Buildings and improvements		(409)		(3,466)
Sale of property		(1,611)		(291)
Balance, end of year		101,194		$ 92,547	$ 88,452
Residential Properties [Member] | Steuben Arms, River Edge, NJ [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances						10,456
Initial Cost to Company
Land						364
Buildings and Improvements						1,773
Costs Capitalized Subsequent to Acquisition
Land
Improvements						1,473
Gross Amount at Which Carried at Close of Period
Land						364
Buildings and Improvements						3,246
Total	[1]	3,610				3,610
Accumulated Depreciation		2,782				2,782
Real estate:
Balance, end of year	[1]	3,610
Accumulated depreciation:
Balance, end of year		2,782
Residential Properties [Member] | Berdan Court, Wayne, NJ [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances						17,705
Initial Cost to Company
Land						250
Buildings and Improvements						2,206
Costs Capitalized Subsequent to Acquisition
Land
Improvements						4,482
Gross Amount at Which Carried at Close of Period
Land						250
Buildings and Improvements						6,688
Total	[1]	6,938				6,938
Accumulated Depreciation		5,233				5,233
Real estate:
Balance, end of year	[1]	6,938
Accumulated depreciation:
Balance, end of year		5,233
Residential Properties [Member] | Westwood Hills, Westwood, NJ [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances						20,628
Initial Cost to Company
Land						3,849
Buildings and Improvements						11,546
Costs Capitalized Subsequent to Acquisition
Land
Improvements						2,535
Gross Amount at Which Carried at Close of Period
Land						3,849
Buildings and Improvements						14,081
Total	[1]	17,930				17,930
Accumulated Depreciation		8,415				8,415
Real estate:
Balance, end of year	[1]	17,930
Accumulated depreciation:
Balance, end of year		8,415
Residential Properties [Member] | Pierre Towers, Hackensack, NJ [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances						29,198
Initial Cost to Company
Land						8,390
Buildings and Improvements						37,486
Costs Capitalized Subsequent to Acquisition
Land						19
Improvements						9,108
Gross Amount at Which Carried at Close of Period
Land						8,409
Buildings and Improvements						46,594
Total	[1]	55,003				55,003
Accumulated Depreciation		16,185				16,185
Cost for Federal income tax purposes						42,600
Real estate:
Balance, end of year	[1]	55,003
Accumulated depreciation:
Balance, end of year		16,185
Residential Properties [Member] | Boulders - Rockaway, NJ [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances						16,660
Initial Cost to Company
Land						1,632
Buildings and Improvements
Costs Capitalized Subsequent to Acquisition
Land						3,386
Improvements						15,790
Gross Amount at Which Carried at Close of Period
Land						5,018
Buildings and Improvements						15,790
Total	[1]	20,808				20,808
Accumulated Depreciation		4,889				4,889
Real estate:
Balance, end of year	[1]	20,808
Accumulated depreciation:
Balance, end of year		4,889
Residential Properties [Member] | Regency Club - Middletown, NY [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances						16,200
Initial Cost to Company
Land						2,833
Buildings and Improvements						17,792
Costs Capitalized Subsequent to Acquisition
Land
Improvements						630
Gross Amount at Which Carried at Close of Period
Land						2,833
Buildings and Improvements						18,422
Total	[1]	21,255				21,255
Accumulated Depreciation		1,600				1,600
Cost for Federal income tax purposes						36,000
Real estate:
Balance, end of year	[1]	21,255
Accumulated depreciation:
Balance, end of year		1,600
Residential Properties [Member] | Icon - Baltimore, MD [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances						67,921
Initial Cost to Company
Land						5,871
Buildings and Improvements
Costs Capitalized Subsequent to Acquisition
Land
Improvements						87,596
Gross Amount at Which Carried at Close of Period
Land						5,871
Buildings and Improvements						87,596
Total	[1]	93,467				93,467
Accumulated Depreciation		2,726				2,726
Real estate:
Balance, end of year	[1]	93,467
Accumulated depreciation:
Balance, end of year		$ 2,726
Residential Properties [Member] | Minimum [Member] | Steuben Arms, River Edge, NJ [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		7 years
Residential Properties [Member] | Minimum [Member] | Berdan Court, Wayne, NJ [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		7 years
Residential Properties [Member] | Minimum [Member] | Westwood Hills, Westwood, NJ [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		7 years
Residential Properties [Member] | Minimum [Member] | Pierre Towers, Hackensack, NJ [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		7 years
Residential Properties [Member] | Minimum [Member] | Boulders - Rockaway, NJ [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		7 years
Residential Properties [Member] | Minimum [Member] | Regency Club - Middletown, NY [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		7 years
Residential Properties [Member] | Minimum [Member] | Icon - Baltimore, MD [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		7 years
Residential Properties [Member] | Maximum [Member] | Steuben Arms, River Edge, NJ [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		40 years
Residential Properties [Member] | Maximum [Member] | Berdan Court, Wayne, NJ [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		40 years
Residential Properties [Member] | Maximum [Member] | Westwood Hills, Westwood, NJ [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		39 years
Residential Properties [Member] | Maximum [Member] | Pierre Towers, Hackensack, NJ [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		40 years
Residential Properties [Member] | Maximum [Member] | Boulders - Rockaway, NJ [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		40 years
Residential Properties [Member] | Maximum [Member] | Regency Club - Middletown, NY [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		40 years
Residential Properties [Member] | Maximum [Member] | Icon - Baltimore, MD [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 III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances						20,357
Initial Cost to Company
Land						2,950
Buildings and Improvements						6,987
Costs Capitalized Subsequent to Acquisition
Land						6,296
Improvements						17,236
Gross Amount at Which Carried at Close of Period
Land						9,246
Buildings and Improvements						24,223
Total	[1]	$ 33,469				33,469
Accumulated Depreciation		6,179				6,179
Real estate:
Balance, end of year	[1]	33,469
Accumulated depreciation:
Balance, end of year		6,179
Westwood Plaza and Damascus Shopping Center [Member] | Franklin Crossing, Franklin Lakes, NJ [Member]
SEC Schedule III, 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						7,427
Gross Amount at Which Carried at Close of Period
Land						3,411
Buildings and Improvements						7,427
Total	[1]	10,838				10,838
Accumulated Depreciation		3,835				3,835
Real estate:
Balance, end of year	[1]	10,838
Accumulated depreciation:
Balance, end of year		3,835
Westwood Plaza and Damascus Shopping Center [Member] | Glen Rock, NJ [Member]
SEC Schedule III, 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						214
Gross Amount at Which Carried at Close of Period
Land						12
Buildings and Improvements						250
Total	[1]	262				262
Accumulated Depreciation		156				156
Real estate:
Balance, end of year	[1]	262
Accumulated depreciation:
Balance, end of year		156
Westwood Plaza and Damascus Shopping Center [Member] | Pathmark Super Center, Patchogue, NY [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances						5,231
Initial Cost to Company
Land						2,128
Buildings and Improvements						8,818
Costs Capitalized Subsequent to Acquisition
Land
Improvements						(8)
Gross Amount at Which Carried at Close of Period
Land						2,128
Buildings and Improvements						8,810
Total	[1]	10,938				10,938
Accumulated Depreciation		4,446				4,446
Real estate:
Balance, end of year	[1]	10,938
Accumulated depreciation:
Balance, end of year		4,446
Westwood Plaza and Damascus Shopping Center [Member] | Westridge Square S/C, Frederick, MD [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances						23,241
Initial Cost to Company
Land						9,135
Buildings and Improvements						19,159
Costs Capitalized Subsequent to Acquisition
Land						(1)
Improvements						4,577
Gross Amount at Which Carried at Close of Period
Land						9,134
Buildings and Improvements						23,736
Total	[1]	32,870				32,870
Accumulated Depreciation		17,878				17,878
Real estate:
Balance, end of year	[1]	32,870
Accumulated depreciation:
Balance, end of year		17,878
Westwood Plaza and Damascus Shopping Center [Member] | Westwood Plaza, Westwood, NJ [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances						20,220
Initial Cost to Company
Land						6,889
Buildings and Improvements						6,416
Costs Capitalized Subsequent to Acquisition
Land
Improvements						2,452
Gross Amount at Which Carried at Close of Period
Land						6,889
Buildings and Improvements						8,868
Total	[1]	15,757				15,757
Accumulated Depreciation		8,145				8,145
Real estate:
Balance, end of year	[1]	15,757
Accumulated depreciation:
Balance, end of year		8,145
Westwood Plaza and Damascus Shopping Center [Member] | Preakness S/C, Wayne, NJ [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances						25,102
Initial Cost to Company
Land						9,280
Buildings and Improvements						24,217
Costs Capitalized Subsequent to Acquisition
Land
Improvements						2,203
Gross Amount at Which Carried at Close of Period
Land						9,280
Buildings and Improvements						26,420
Total	[1]	35,700				35,700
Accumulated Depreciation		10,407				10,407
Cost for Federal income tax purposes						13,200
Real estate:
Balance, end of year	[1]	35,700
Accumulated depreciation:
Balance, end of year		10,407
Westwood Plaza and Damascus Shopping Center [Member] | The Rotunda, Baltimore, MD [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances						47,395
Initial Cost to Company
Land						10,392
Buildings and Improvements						14,634
Costs Capitalized Subsequent to Acquisition
Land						232
Improvements						48,666
Gross Amount at Which Carried at Close of Period
Land						10,624
Buildings and Improvements						63,300
Total	[1]	73,924				73,924
Accumulated Depreciation		8,318				8,318
Cost for Federal income tax purposes						165,700
Real estate:
Balance, end of year	[1]	73,924
Accumulated depreciation:
Balance, end of year		$ 8,318
Westwood Plaza and Damascus Shopping Center [Member] | Minimum [Member] | Damascus Shopping Center, Damascus, MD [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] | Minimum [Member] | Franklin Crossing, Franklin Lakes, NJ [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] | Minimum [Member] | Glen Rock, NJ [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] | Minimum [Member] | Pathmark Super Center, Patchogue, NY [Member]
Gross Amount at Which Carried at Close of Period
Life on Which Depreciation is Computed		15 years
Westwood Plaza and Damascus Shopping Center [Member] | Minimum [Member] | Westridge Square S/C, Frederick, MD [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] | Minimum [Member] | Westwood Plaza, Westwood, NJ [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] | Minimum [Member] | Preakness S/C, Wayne, NJ [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] | Minimum [Member] | The Rotunda, Baltimore, MD [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] | Maximum [Member] | Damascus Shopping Center, Damascus, MD [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] | Maximum [Member] | Franklin Crossing, Franklin Lakes, NJ [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] | Maximum [Member] | Glen Rock, NJ [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] | Maximum [Member] | Pathmark Super Center, Patchogue, NY [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] | Maximum [Member] | Westridge Square S/C, Frederick, MD [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] | Maximum [Member] | Westwood Plaza, Westwood, NJ [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] | Maximum [Member] | Preakness S/C, Wayne, NJ [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] | Maximum [Member] | The Rotunda, Baltimore, MD [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 III, 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 III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances
Initial Cost to Company
Land						51
Buildings and Improvements
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 III, 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 III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances
Initial Cost to Company
Land						286
Buildings and Improvements
Costs Capitalized Subsequent to Acquisition
Land
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 Pierre Towers, Preakness S/C, the Regency Club and the Rotunda properties (Icon and The Rotunda) whose cost for federal income tax purposes is approximately $42.6 million, $36 million, $13.2 million and $165.7 million, respectively.