Note 5 - Property, Plant, and Equipment (Detail) - Major classes of property, plant, and equipment are: (USD $)	Nov. 30, 2012	Nov. 30, 2011
Property, plant and equipment, gross	$ 23,077,653	$ 20,939,072
Less accumulated depreciation	(13,514,955)	(12,853,353)
Property, plant and equipment	9,562,698	8,085,719
Land [Member]
Property, plant and equipment, gross	1,038,154	770,862
Building and Building Improvements [Member]
Property, plant and equipment, gross	9,178,964	8,127,211
Construction in Progress [Member]
Property, plant and equipment, gross	444,221	290,667
Manufacturing Machinery and Equipment [Member]
Property, plant and equipment, gross	11,872,993	11,261,585
Trucks and Automobiles [Member]
Property, plant and equipment, gross	396,308	347,110
Furniture and Fixtures [Member]
Property, plant and equipment, gross	$ 147,013	$ 141,637

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

+ References+ Details

Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References+ Details

- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References+ Details