Document and Entity Information - shares |
6 Months Ended | |
|---|---|---|
Apr. 30, 2019 |
Jun. 07, 2019 |
|
| Document and Entity Information [Abstract] | ||
| Entity Registrant Name | FIRST REAL ESTATE INVESTMENT TRUST OF NEW JERSEY | |
| Entity Central Index Key | 0000036840 | |
| Document Type | 10-Q | |
| Document Fiscal Year Focus | 2019 | |
| Document Fiscal Period Focus | Q2 | |
| Document Period End Date | Apr. 30, 2019 | |
| Amendment Flag | false | |
| Current Fiscal Year End Date | --10-31 | |
| Entity Filer Category | Accelerated Filer | |
| Entity Small Business | false | |
| Entity Emerging Growth Company | false | |
| Entity Common Stock, Shares Outstanding | 6,784,978 |