Income Taxes (Details 2) (USD $)	Aug. 31, 2012	Aug. 31, 2011
Deferred tax assets:
Net operating loss	$ 1,584,000	$ 2,643,000
Capital losses	3,351,000	3,445,000
Allowance for doubtful accounts	89,000	84,000
Accrued expenses	190,000	217,000
Accrued worker's compensation	1,048,000	1,102,000
Related party interest accrual	0	376,000
Inventory reserve	602,000	483,000
Unrealized losses (gain) on investment	(4,000)	75,000
Excess of tax over book depreciation	305,000	236,000
Other	263,000	222,000
Total deferred tax assets	7,428,000	8,883,000
Valuation allowance	(3,887,000)	(4,064,000)
Deferred Tax Assets, Net of Valuation Allowance	3,541,000	4,819,000
Deferred tax liabilities:
Deferred gains	(1,140,000)	(1,134,000)
Total deferred tax liabilities	(1,140,000)	(1,134,000)
Net deferred tax asset	$ 2,401,000	$ 3,685,000