Anchor tenant termination and modification of lease (Details) - USD ($)	3 Months Ended		6 Months Ended
	Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 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