Equipment and Leasehold Improvements (Details) (USD $)	Aug. 31, 2013	Aug. 31, 2012
Book value	$ 1,396,000	$ 1,106,000
Equipment and Lease Hold Improvements [Member]
Machinery and equipment	4,584,000	4,293,000
Furniture and equipment	793,000	687,000
Vehicles	138,000	121,000
Leasehold improvements	1,463,000	1,164,000
Property, Plant and Equipment, Gross	6,978,000	6,265,000
Less accumulated depreciation and amortization	(5,582,000)	(5,159,000)
Book value	$ 1,396,000	$ 1,106,000