Equipment and Leasehold Improvements (Details) - USD ($)	Aug. 31, 2016	Aug. 31, 2015
Machinery and equipment	$ 5,960,000	$ 5,658,000
Furniture and fixtures	829,000	810,000
Vehicles	155,000	138,000
Leasehold improvements	1,576,000	1,556,000
Property, Plant and Equipment, Gross, Total	8,520,000	8,162,000
Less accumulated depreciation and amortization	(7,125,000)	(6,593,000)
Property, Plant and Equipment, Net, Total	$ 1,395,000	$ 1,569,000

Gross amount of vehicles, at the balance sheet date.

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

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Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.

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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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Amount before accumulated depreciation, depletion and amortization of 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, and furniture and fixtures.

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