Income Taxes (Details 2) - USD ($)	Aug. 31, 2016	Aug. 31, 2015
Deferred tax assets:
Net operating loss	$ 518,000	$ 522,000
Capital losses	0	116,000
Allowance for doubtful accounts	8,000	14,000
Accrued expenses	381,000	146,000
Accrued workers’ compensation	25,000	32,000
Inventory reserve	852,000	775,000
Unrealized losses on investment	(167,000)	(254,000)
Excess of tax over book depreciation	(147,000)	(78,000)
Other	198,000	305,000
Total deferred tax assets	1,668,000	1,578,000
Valuation allowance	(518,000)	(639,000)
Total deferred tax assets	$ 1,150,000	$ 939,000