Condensed Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Nov. 30, 2012	Nov. 30, 2011
Revenues:
Company Drive-In sales	$ 93,456	$ 96,782
Franchise Drive-Ins:
Franchise royalties and fees	29,920	29,076
Lease revenue	1,486	1,288
Other	1,146	1,133
Total revenues	126,008	128,279
Costs and expenses:
Food and packaging	26,632	27,725
Payroll and other employee benefits	33,465	35,084
Other operating expenses, exclusive of depreciation and amortization included below	21,976	22,911
Total cost of company drive-in sales	82,073	85,720
Selling, general and administrative	16,130	15,417
Depreciation and amortization	10,595	10,466
Other operating (income) expense, net	7	(78)
Total costs and expenses	108,805	111,525
Income from operations	17,203	16,754
Interest expense	7,675	8,041
Interest income	(141)	(164)
Net interest expense	7,534	7,877
Income before income taxes	9,669	8,877
Provision for income taxes	3,536	3,378
Net income	$ 6,133	$ 5,499
Basic income per share	$ 0.11	$ 0.09
Diluted income per share	$ 0.11	$ 0.09