Consolidated Statements of Operations and Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Feb. 28, 2015	Mar. 01, 2014	Feb. 28, 2015	Mar. 01, 2014
Net revenues	$ 234,543	$ 228,811	$ 458,946	$ 451,481
Cost of goods sold	210,285	205,966	410,302	402,674
Gross profit	24,258	22,845	48,644	48,807
Operating expenses:
Selling	4,846	4,489	9,553	8,822
General and administrative	7,464	4,949	12,701	10,572
Gain on sale of real estate	0	629	0	629
Total operating expenses	12,310	8,809	22,254	18,765
Operating income	11,948	14,036	26,390	30,042
Non-operating income (expense)	28	(74)	35	17
Income before income taxes	11,976	13,962	26,425	30,059
Provision for taxes	3,880	4,369	8,434	9,320
Net income	8,096	9,593	17,991	20,739
Income per common share:
Basic	$ 0.30	$ 0.35	$ 0.67	$ 0.75
Diluted	$ 0.30	$ 0.35	$ 0.67	$ 0.74
Weighted average common shares outstanding:
Basic (in shares)	26,924	27,595	26,946	27,723
Diluted (in shares)	27,018	27,724	27,048	27,850
Other comprehensive income (loss):
Amortization of prior service credit (net of tax of $506, $528, $998 and $1,010)	(822)	(876)	(1,622)	(1,676)
Amortization of net actuarial loss (net of tax of $136, $102, $258 and $201)	220	168	419	332
Plan amendment, net of tax of $581, $1,346, $581 and $1,346)	944	2,234	944	2,234
Unrealized appreciation of investments (net of tax of $0, $0, $0 and $91)	0	0	0	151
Total other comprehensive income (loss)	342	1,526	(259)	1,041
Comprehensive income	$ 8,438	$ 11,119	$ 17,732	$ 21,780