Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Aug. 31, 2013	Sep. 01, 2012
Operating Activities
Net earnings	$ 10,280	$ 6,663
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:
Depreciation and amortization	13,175	13,113
Stock-based compensation	2,306	2,318
Deferred income taxes	47	834
Excess tax benefits from stock-based compensation	(1,623)	(190)
Gain on disposal of assets	(814)	(580)
Other, net	398	336
Changes in operating assets and liabilities:
Receivables	(2,402)	(9,616)
Inventories	(4,149)	(5,527)
Accounts payable and accrued expenses	(4,650)	(721)
Billings in excess of costs and earnings on uncompleted contracts	(3,652)	5,966
Refundable and accrued income taxes	3,469	(2,307)
Other, net	(123)	144
Net cash provided by (used in) operating activities	12,262	10,433
Investing Activities
Capital expenditures	(8,236)	(15,679)
Proceeds from sales of property, plant and equipment	458	18
Payments to Acquire Businesses, Net of Cash Acquired	(2,155)	0
Purchases of restricted investments	(2,800)	(10,000)
Sales/maturities of restricted investments	22,656	2,080
Purchases of marketable securities	(11,680)	(28,986)
Sales/maturities of marketable securities	22,859	14,393
Investments in corporate-owned life insurance policies	0	(900)
Net cash (used in) provided by investing activities	21,102	(39,074)
Financing Activities
Proceeds from issuance of debt	0	10,000
Payments on debt	(10,029)	(86)
Payments on debt issue costs	(73)	(194)
Shares withheld for taxes, net of stock issued to employees	(1,361)	(554)
Excess tax benefits from stock-based compensation	1,623	190
Dividends paid	(5,277)	(5,193)
Net cash provided by (used in) financing activities	(15,117)	4,163
Increase (decrease) in cash and cash equivalents	18,247	(24,478)
Effect of exchange rates on cash	(373)	4
Cash and cash equivalents at beginning of year	37,767	54,027
Cash and cash equivalents at end of period	55,641	29,553
Noncash Activity
Capital expenditures in accounts payable	$ 319	$ 803