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Fair Value - Assets and Liabilities (Details) - USD ($)
$ in Thousands
May 31, 2019
Nov. 30, 2018
Financial assets:    
Short-term investments $ 12,000 $ 17,000
Financial liabilities:    
Interest rate swaps 171 171
Carrying Value | Level 1    
Financial assets:    
Cash and cash equivalents 6,966 8,592
Carrying Value | Level 2    
Financial assets:    
Short-term investments 12,000 17,000
Interest rate swap assets 17 3,157
Financial liabilities:    
Mortgage and construction loans, net of debt issuance costs 143,537 145,052
Interest rate swaps 2,312 56
Estimated Fair Value | Level 1    
Financial assets:    
Cash and cash equivalents 6,966 8,592
Estimated Fair Value | Level 2    
Financial assets:    
Short-term investments 12,000 17,000
Interest rate swap assets 17 3,157
Financial liabilities:    
Mortgage and construction loans, net of debt issuance costs 143,059 144,712
Interest rate swaps $ 2,312 $ 56