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Investment in tenancy-in-common (Details) - USD ($)
3 Months Ended 9 Months Ended
Jul. 31, 2023
Jul. 31, 2022
Jul. 31, 2023
Jul. 31, 2022
Oct. 31, 2022
Feb. 28, 2020
Investment in Tenancy in Common [Line Items]            
Investment in tenancy-in-common $ 18,177,000   $ 18,177,000   $ 18,798,000  
Gain (loss) on investment (43,000) $ 57,000 $ (231,000) $ (99,000)    
Percentage of management fees of rent collected     5.00%      
Management fees 105,000 101,000 $ 313,000 298,000    
Commission paid 51,000 40,000 51,000 40,000    
F R E I Ts Investment [Member]            
Investment in Tenancy in Common [Line Items]            
Investment in tenancy-in-common 18,200,000   18,200,000   $ 18,800,000  
Gain (loss) on investment $ 43,000 $ 57,000 $ 231,000 $ 99,000    
S And A Commercial Associates Limited Partnership [Member]            
Investment in Tenancy in Common [Line Items]            
Percentage of ownership interest           65.00%
Pierre Towers [Member]            
Investment in Tenancy in Common [Line Items]            
Percentage of ownership interest           100.00%
Pierre Towers, LLC [Member]            
Investment in Tenancy in Common [Line Items]            
Percentage of ownership interest           100.00%
TIC Agreement [Member]            
Investment in Tenancy in Common [Line Items]            
Percentage of ownership interest           65.00%