Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 01, 2013	Jun. 02, 2012
Operating Activities
Net earnings	$ 4,159	$ 1,606
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:
Depreciation and amortization	6,511	6,528
Stock-based compensation	1,118	1,028
Deferred income taxes	276	570
Excess tax benefits from stock-based compensation	(1,009)	(25)
Gain on disposal of assets	(304)	(296)
Other, net	231	239
Changes in operating assets and liabilities:
Receivables	3,782	(3,590)
Inventories	(4,413)	(4,804)
Accounts payable and accrued expenses	(11,911)	(10,510)
Billings in excess of costs and earnings on uncompleted contracts	(2,051)	5,210
Refundable and accrued income taxes	1,425	(3,083)
Other, net	19	(530)
Net cash provided by (used in) operating activities	(2,167)	(7,657)
Investing Activities
Capital expenditures	(1,512)	(9,509)
Proceeds from sales of property, plant and equipment	169	14
Purchases of restricted investments	(2,800)	(10,000)
Sales/maturities of restricted investments	22,053	1,740
Purchases of marketable securities	(10,225)	(17,040)
Sales/maturities of marketable securities	6,656	5,915
Investments in corporate-owned life insurance policies	0	(900)
Net cash (used in) provided by investing activities	14,341	(29,780)
Financing Activities
Proceeds from issuance of debt	0	10,000
Payments on debt	(10,015)	(45)
Payments on debt issue costs	0	(193)
Shares withheld for taxes, net of stock issued to employees	(1,141)	(817)
Excess tax benefits from stock-based compensation	1,009	25
Dividends paid	(2,687)	(2,643)
Net cash provided by (used in) financing activities	(12,834)	6,327
(Decrease) increase in cash and cash equivalents	(660)	(31,110)
Effect of exchange rates on cash	40	111
Cash and cash equivalents at beginning of year	37,767	54,027
Cash and cash equivalents at end of period	37,147	23,028
Noncash Activity
Capital expenditures in accounts payable	$ 298	$ 149