Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 30, 2014	Aug. 31, 2013	Aug. 25, 2012
Operating activities:
Net income	$ 45,053	$ 31,953	$ 44,972
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,997	4,764	4,872
LIFO expense (income)	1,456	(1,180)	(613)
Asset impairment	0	0	50
Stock-based compensation	3,386	3,009	1,918
Deferred income taxes including valuation allowance	(48)	1,790	(34,749)
Postretirement benefit income and deferred compensation expense	(979)	245	570
(Benefit) provision for doubtful accounts	(19)	25	125
(Gain) loss on disposal of property	(691)	(95)	28
Gain on life insurance	(726)	(536)	(529)
Loss on sale of investments	0	45	0
Increase in cash surrender value of life insurance policies	(805)	(1,030)	(732)
Change in assets and liabilities:
Inventories	(1,763)	(24,267)	(17,316)
Receivables, prepaid and other assets	(38,233)	(8,908)	(2,085)
Investment in operating leases, net of repurchase obligations	72	0	0
Income taxes and unrecognized tax benefits	5,625	(194)	7
Accounts payable and accrued expenses	10,919	8,939	7,627
Postretirement and deferred compensation benefits	(4,008)	(4,322)	(4,030)
Net cash provided by operating activities	23,236	10,238	115
Investing activities:
Proceeds from the sale of investments	2,350	7,300	1,050
Proceeds from life insurance	1,737	1,004	1,652
Purchases of property and equipment	(10,476)	(4,422)	(2,213)
Proceeds from the sale of property	2,423	734	17
Payments of COLI borrowings	0	(1,371)	0
Other	(1,402)	822	(624)
Net cash (used in) provided by investing activities	(5,368)	4,067	(118)
Financing activities:
Payments for purchases of common stock	(26,340)	(12,718)	(6,604)
Proceeds from exercise of stock options	2,080	75	0
Other	(81)	(68)	(17)
Net cash used in financing activities	(24,341)	(12,711)	(6,621)
Net (decrease) increase in cash and cash equivalents	(6,473)	1,594	(6,624)
Cash and cash equivalents at beginning of period	64,277	62,683
Cash and cash equivalents at end of period	57,804	64,277	62,683
Supplemental cash flow disclosure:
Income taxes paid (refunded), net	$ 14,061	$ 11,500	$ (134)