Anchor tenant termination and modification of lease (Details) - USD ($)	3 Months Ended			9 Months Ended
	Jul. 31, 2018	Jul. 31, 2017	Apr. 30, 2017	Jul. 31, 2018	Jul. 31, 2017	Jul. 26, 2017
Lease Termination Fee Disclosure [Abstract]
FREIT's ownership percentage in Wayne PSC				40.00%
Annual rental income paid by Macy's, Inc. for terminated leased property				$ 234,000
Lease termination fee			$ 620,000		$ 620,000
Expected total rental income lost from termination of lease				$ 200,000
Reduction in annual rent having adverse effect on future operating results						$ 250,000