Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 01, 2012	Nov. 26, 2011
Operating Activities
Net earnings	$ 14,715	$ 1,682
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:
Net earnings from discontinued operations	(239)	0
Depreciation and amortization	19,817	20,615
Stock-based compensation	3,514	3,343
Deferred income taxes	697	1,812
Excess tax benefits from stock-based compensation	(380)	(38)
Gain on disposal of assets	(877)	(705)
Other, net	393	111
Changes in operating assets and liabilities:
Receivables	(19,506)	(20,990)
Inventories	(8,672)	(4,544)
Accounts payable and accrued expenses	12,635	(772)
Billings in excess of costs and earnings on uncompleted contracts	3,712	(3,650)
Refundable and accrued income taxes	(1,783)	(2,191)
Other, net	(982)	607
Net cash provided by (used in) continuing operating activities	23,044	(4,720)
Investing Activities
Capital expenditures	(21,265)	(6,206)
Proceeds from sales of property, plant and equipment	48	10,314
Acquisition of intangibles	(15)	(68)
Purchases of restricted investments	(10,000)	(12,329)
Sales/maturities of restricted investments	5,248	24,994
Purchases of marketable securities	(40,837)	(16,891)
Sales/maturities of marketable securities	26,922	22,698
Investments in corporate-owned life insurance policies	(1,451)	(1,435)
Net cash (used in) provided by investing activities	(41,350)	21,077
Financing Activities
Proceeds from issuance of debt	10,000	121
Payments on debt	(125)	(1,287)
Payments on debt issue costs	(574)	(159)
Shares withheld for taxes, net of stock issued to employees	(261)	(743)
Excess tax benefits from stock-based compensation	380	38
Repurchase and retirement of common stock	0	2,392
Dividends paid	(7,751)	(6,865)
Net cash provided by (used in) financing activities	1,669	(11,287)
Cash Flows of Discontinued Operations
Net cash used in operating activities	(123)	(3,300)
Net cash used in discontinued operations	(123)	(3,300)
(Decrease) increase in cash and cash equivalents	(16,760)	1,770
Effect of exchange rates on cash	151	(148)
Cash and cash equivalents at beginning of year	54,027	24,302
Cash and cash equivalents at end of period	37,418	25,924
Noncash Activity
Capital expenditures in accounts payable	$ 888	$ 175