ORGANIZATION, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Properties Held for Sale (Details) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017
Property Held for Sale [Abstract]
Gain on sale of properties				$ 0	$ (19,460,000)
Revenues		$ 37,005,000	$ 29,992,000	70,000,000	58,959,000
Depreciation and amortization		(6,968,000)	(6,183,000)	(13,917,000)	(12,764,000)
Net Income		14,022,000	27,919,000	23,101,000	35,123,000
Amortization of remaining over-market value for terminated lease				265,000	95,000
Held for Sale [Member] | White Plains, NY [Member]
Property Held for Sale [Abstract]
Proceeds from sale of property held for sale	$ 56,600,000
Gain on sale of properties	$ 19,500,000
Revenues		0	0	0	0
Property operating expense		0	(65,000)	0	(322,000)
Depreciation and amortization		0	0	0	0
Net Income		$ 0	$ (65,000)	$ 0	$ (322,000)