Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Aug. 31, 2015	Aug. 31, 2014
Basic and diluted earnings per share:
Net income	$ 3,741	$ 5,611
Less: undeclared cumulative preferred stock dividends	76	76
Net income available to common shareholders for basic and diluted EPS computation	$ 3,665	$ 5,535
Weighted average common shares outstanding for basic and diluted EPS computation (in shares)	4,861,590	4,861,590
Earnings per common share - basic and diluted (in dollars per share)	$ 0.75	$ 1.14