Shareholders' Equity (Details Textual)	12 Months Ended
	Aug. 31, 2015 USD ($) $ / shares shares
Sale Of Convertible Preferred Stock | shares	36,000
Preferred Stock, Dividend Rate, Percentage	8.50%
Dividends, Preferred Stock, Cash	$ 900,000
Debt Instrument, Convertible, Conversion Price | $ / shares	$ 22.50
Common Stock, Conversion Basis	Holders of the Preferred Stock have the right at any time to convert the Preferred Stock and accrued but unpaid dividends into shares
Final Settlement To Holders Of Preferred Stock During Dissolution	$25.00 per share plus all unpaid dividends