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Earnings Per Share (Details Textual) - shares
3 Months Ended 6 Months Ended
Feb. 29, 2016
Feb. 28, 2015
Feb. 29, 2016
Feb. 28, 2015
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 40,000 40,000 40,000 40,000
Series A Cumulative Convertible Preferred Stock [Member]        
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]        
Convertible Preferred Stock, Shares Issued upon Conversion 36,000 36,000 36,000 36,000