Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Sep. 01, 2012	Aug. 27, 2011
Operating Activities
Net earnings (loss)	$ 6,663	$ (3,854)
Adjustments to reconcile net earnings to net cash used in operating activities:
Net earnings from discontinued operations	(238)	0
Depreciation and amortization	13,113	13,876
Stock-based compensation	2,318	2,012
Deferred income taxes	834	1,190
Excess tax benefits from stock-based compensation	(190)	0
Gain on disposal of assets	(580)	(492)
Other, net	336	98
Changes in operating assets and liabilities:
Receivables	(9,616)	(10,198)
Inventories	(5,527)	(7,326)
Accounts payable and accrued expenses	(386)	(2,059)
Billings in excess of costs and earnings on uncompleted contracts	5,966	(5,315)
Refundable and accrued income taxes	(2,307)	(2,991)
Other, net	144	342
Net cash provided by (used in) continuing operating activities	10,530	(14,717)
Investing Activities
Capital expenditures	(15,679)	(3,577)
Proceeds from sales of property, plant and equipment	18	10,313
Acquisition of intangibles	0	(58)
Purchases of restricted investments	(10,000)	(12,329)
Sales/maturities of restricted investments	2,080	23,190
Purchases of marketable securities	(28,986)	(9,462)
Sales/maturities of marketable securities	14,393	18,284
Investments in corporate-owned life insurance policies	(900)	(1,435)
Net cash (used in) provided by investing activities	(39,074)	24,926
Financing Activities
Proceeds from issuance of debt	10,000	0
Payments on debt	(86)	(1,250)
Payments on debt issue costs	(194)	(66)
Shares withheld for taxes, net of stock issued to employees	(554)	(752)
Excess tax benefits from stock-based compensation	190	0
Dividends paid	(5,193)	(4,579)
Net cash provided by (used in) financing activities	4,163	(6,647)
Cash Flows of Discontinued Operations
Net cash used in operating activities	(97)	(3,263)
Net cash used in discontinued operations	(97)	(3,263)
(Decrease) increase in cash and cash equivalents	(24,478)	299
Effect of exchange rates on cash	4	10
Cash and cash equivalents at beginning of year	54,027	24,302
Cash and cash equivalents at end of period	29,553	24,611
Noncash Activity
Capital expenditures in accounts payable	$ 803	$ 340