Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Nov. 30, 2013	Dec. 01, 2012
Operating Activities
Net earnings	$ 19,948	$ 14,715
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:
Depreciation and amortization	19,576	19,817
Stock-based compensation	3,471	3,514
Deferred income taxes	(2,224)	697
Excess tax benefits from stock-based compensation	(1,780)	(380)
Gain on disposal of assets	(1,297)	(877)
Proceeds from new markets tax credit transaction, net of deferred costs	7,752	0
Other, net	(214)	393
Changes in operating assets and liabilities:
Receivables	(8,247)	(19,506)
Inventories	(4,378)	(8,672)
Accounts payable and accrued expenses	10,443	12,273
Billings in excess of costs and earnings on uncompleted contracts	(5,387)	3,712
Refundable and accrued income taxes	5,518	(1,783)
Other, net	(475)	(982)
Net cash provided by (used in) operating activities	42,706	22,921
Investing Activities
Capital expenditures	(17,255)	(21,265)
Proceeds from sales of property, plant and equipment	733	48
Payments to Acquire Businesses, Net of Cash Acquired	(52,806)	(15)
Purchases of restricted investments	(36,200)	(10,000)
Sales/maturities of restricted investments	38,968	5,248
Purchases of marketable securities	(14,300)	(40,837)
Sales/maturities of marketable securities	37,917	26,922
Investments in corporate-owned life insurance policies	0	(1,451)
Net cash provided by (used in) investing activities	(42,943)	(41,350)
Financing Activities
Proceeds from issuance of debt	0	10,000
Payments on debt	(10,068)	(125)
Payments on debt issue costs	(117)	(574)
Shares withheld for taxes, net of stock issued to employees	(961)	(261)
Excess tax benefits from stock-based compensation	1,780	380
Dividends paid	(7,868)	(7,751)
Net cash provided by (used in) financing activities	(17,234)	1,669
Increase (decrease) in cash and cash equivalents	(17,471)	(16,760)
Effect of exchange rates on cash	(443)	151
Cash and cash equivalents at beginning of year	37,767	54,027
Cash and cash equivalents at end of period	19,853	37,418
Noncash Activity
Capital expenditures in accounts payable	$ 1,396	$ 888