Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Nov. 30, 2015	Nov. 30, 2014
EPS:
Net income	$ 500	$ 395
Less: accrued preferred stock dividends	(19)	(19)
Net income attributable to common shareholders	$ 481	$ 376
Earnings per common share - basic and diluted (in dollars per share)	$ 0.10	$ 0.08