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Note 6 - Assets Available for Sale (Detail) (USD $)	12 Months Ended
Note 6 - Assets Available for Sale (Detail) (USD $)	Nov. 30, 2012	Nov. 30, 2011
Depreciation	$ 792,910	$ 720,169
Salem, South Dakota [Member]
Asset Impairment Charges	94,647
Depreciation	$ 4,215	$ 4,215

The charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value.

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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