Earnings per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Nov. 30, 2013	Nov. 30, 2012
EPS:
Net income	$ 1,064	$ 383
Less: accrued preferred stock dividends	(19)	(19)
Net income available for common shareholders	$ 1,045	$ 364
Earnings per common share - basic and diluted (in dollars per share)	$ 0.21	$ 0.08