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Fair Value - Assets and Liabilities (Details) - USD ($)
$ in Thousands
May 31, 2016
Nov. 30, 2015
Financial assets:    
Available-for-sale securities $ 1,449 $ 1,970
Financial liabilities:    
Interest rate swap liabilities 4,046 3,981
Carrying Value | Level 1    
Financial assets:    
Cash and cash equivalents 21,121 18,271
Available-for-sale securities 1,449 1,970
Carrying Value | Level 2    
Financial liabilities:    
Mortgage loans 100,537 90,436
Interest rate swap liabilities 3,858 2,766
Estimated Fair Value | Level 1    
Financial assets:    
Cash and cash equivalents 21,121 18,271
Available-for-sale securities 1,449 1,970
Estimated Fair Value | Level 2    
Financial liabilities:    
Mortgage loans 102,085 91,406
Interest rate swap liabilities $ 3,858 $ 2,766