Pathmark Stores, Inc. Bankruptcy Filing (Narrative) (Details) - USD ($)	3 Months Ended	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Receivables arising from straight-lining of rents	$ 2,604,000	$ 2,604,000	$ 3,869,000
Straight line rent adjustment - bankrupt tenant		1,046,000
Pathmark Stores, Inc. [Member]
Lease rejected by bankruptcy court	6,900,000	6,900,000
Receivables arising from straight-lining of rents	1,046,000	$ 1,046,000
Straight line rent adjustment - bankrupt tenant	$ 1,046,000
Straight line rent adjustment - bankrupt tenant, per basic and diluted share	$ 0.15
Lost annual rents due to bankrupt tenant	$ 1,400,000