Income Taxes (Details 1) - USD ($)	12 Months Ended
	Aug. 31, 2016	Aug. 31, 2015
Current:
Expected income tax benefit at statutory rate	$ 2,234,000	$ 2,008,000
Increase (decrease) in taxes due to:
State tax, net of federal benefit	303,000	284,000
Permanent differences	29,000	32,000
Change in deferred tax asset valuation allowance	(121,000)	62,000
Other, net	(12,000)	(132,000)
Income tax expense	$ 2,433,000	$ 2,254,000