Capitalized interest	3 Months Ended
Jan. 31, 2017
Capitalized interest [Abstract]
Capitalized interest	Note 6 – Capitalized interest Interest costs associated with amounts expended at the Grande Rotunda development were capitalized and included in the cost of the project. Capitalization of interest ceased upon substantial completion of the project which occurred as of the end of the third quarter of Fiscal 2016. There was no interest capitalized in Fiscal 2017. Interest capitalized during the three months ended January 31, 2016 amounted to approximately $811,000.

The entire disclosure regarding capitalization of interest costs, including but not limited to: (i) capitalizing to inventory the interest costs incurred on land development, home construction, and building construction projects, (ii) charging such capitalized costs against earnings, including identification of the line item captions reflecting such expense (typically cost of sales), and (iii) allocating such costs to projects.

No definition available.

Name:	frevsob_CapitalizedInterestTextBlock
Namespace Prefix:	frevsob_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration