Anchor tenant termination and modification of lease (Details) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 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
Expected total rental income lost from termination of lease			$ 200,000
Reduction in annual rent having adverse effect on future operating results				$ 250,000