Income Taxes (Details)	12 Months Ended
Oct. 31, 2022	Oct. 31, 2021
Income Taxes [Abstract]
Capital gain percentage	100.00%
Percentage of ordinary taxable income		92.40%

Percentage Of Capital Gain From Sale Of Property Distributed As Dividends.

No definition available.

Name:	frevsob_PercentageOfCapitalGainFromSaleOfPropertyDistributedAsDividends
Namespace Prefix:	frevsob_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	duration