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Segment information (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Jan. 31, 2014
Jan. 31, 2013
Reportable Segments    
Real estate rental revenue $ 8,992 $ 8,890
Real estate operating expenses 6,520 6,449
Operating income 4,052 3,938
Commercial
   
Reportable Segments    
Real estate rental revenue 5,707 5,861
Real estate operating expenses 2,324 2,225
Operating income 3,383 3,636
Number of properties 10  
Residential
   
Reportable Segments    
Real estate rental revenue 4,916 4,588
Real estate operating expenses 2,274 2,289
Operating income 2,642 2,299
Recurring capital improvements (104) (57)
Number of properties 6  
Total Reportable Segments
   
Reportable Segments    
Real estate rental revenue 10,623 10,449
Real estate operating expenses 4,598 4,514
Operating income $ 6,025 $ 5,935