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Area of land held.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Useful life on which depreciation was computed for entities with a substantial portion of business acquiring and holding investment real estate, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Carrying amount as of the balance sheet date of improvements having a life longer than one year that were made for the benefit of one or more tenants.

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Real Estate Assets (Details) $ in Thousands								12 Months Ended
Real Estate Assets (Details) $ in Thousands	Oct. 25, 2019 USD ($) ft²	Oct. 24, 2019 USD ($) a ft²	Jul. 18, 2019 USD ($) a ft² building	Jul. 16, 2019 USD ($) a	May 03, 2019 USD ($) a	Apr. 01, 2019 USD ($)	Dec. 26, 2018 USD ($) a	Nov. 30, 2019 USD ($) a	Nov. 30, 2018 USD ($)	Nov. 30, 2017 USD ($)
Real Estate Assets
Land								$ 30,750	$ 21,961
Land improvements								40,992	38,280
Buildings and improvements								220,086	204,258
Tenant improvements								30,318	29,163
Machinery and equipment								7,557	10,958
Construction in progress								3,542	562
Development costs								10,404	13,443
Real estate assets, gross								343,649	318,625
Accumulated depreciation								(105,035)	(105,004)
Real estate assets, net								238,614	213,621
Depreciation expense								10,416	9,853	$ 8,831
Capitalized interest								351	352	103
Real estate assets
Impairment loss								3,100	$ 0	0
Cash received on sale of land										$ 3,535
Pretax gain on land sale								386
Sale price								562
Real estate assets fair value								$ 5,400
7466 Chancellor
Real estate assets
Area Of Building \| ft²	100,000
Cash paid for real estate	$ 10,168
Real estate assets fair value	9,353
Intangible Assets Fair Value	$ 815
7466 Chancellor \| Minimum
Real Estate Assets
Intangible assets amortization period								5 years
7466 Chancellor \| Maximum
Real Estate Assets
Intangible assets amortization period	10 years
Simsbury Land Sale
Real estate assets
Area of land \| a					280
Cash received on sale of land					$ 7,700
Pretax gain on land sale					7,349
Proceeds from land sale deposited in escrow					$ 7,627
Windsor undeveloped land sale
Real estate assets
Area of land \| a								7
Charlotte Land
Real estate assets
Area of land \| a			44
Area Of Building \| ft²			520,000
Number of buildings to be constructed \| building			3
Cash paid for real estate			$ 855	$ 4,725
Charlotte Undeveloped Land
Real estate assets
Area of land \| a			8	36
Lehigh Valley Land
Real estate assets
Area of land \| a		14
Area Of Building \| ft²		100,000
Cash paid for real estate		$ 1,850
East Windsor Land
Real estate assets
Area of land \| a							116
Cash received on sale of land							$ 866
Pretax gain on land sale						$ 42	$ 52
Sale price						$ 700
Land improvements \| Minimum
Real Estate Assets
Estimated Useful Lives								10 years
Land improvements \| Maximum
Real Estate Assets
Estimated Useful Lives								30 years
Land improvements \| 7466 Chancellor
Real Estate Assets
Estimated Useful Lives	40 years
Buildings and improvements \| Minimum
Real Estate Assets
Estimated Useful Lives								10 years
Buildings and improvements \| Maximum
Real Estate Assets
Estimated Useful Lives								40 years
Buildings and improvements \| 7466 Chancellor \| Minimum
Real Estate Assets
Estimated Useful Lives	5 years
Buildings and improvements \| 7466 Chancellor \| Maximum
Real Estate Assets
Estimated Useful Lives	20 years
Machinery and equipment. \| Minimum
Real Estate Assets
Estimated Useful Lives								3 years
Machinery and equipment. \| Maximum
Real Estate Assets
Estimated Useful Lives								20 years