Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Sep. 01, 2018	Sep. 02, 2017
Operating Activities
Net earnings	$ 35,887	$ 33,512
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:
Depreciation and amortization	26,457	25,062
Stock-based compensation	3,119	3,063
Deferred income taxes	6,061	(751)
Gain on disposal of assets	815	37
Proceeds from New Markets Tax Credit transaction, net of deferred costs	6,052	0
Other, net	(682)	(1,168)
Changes in operating assets and liabilities:
Receivables	10,598	8,683
Inventories	2,747	(7,072)
Costs and earnings on contracts in excess of billings	(39,191)	235
Accounts payable and accrued expenses	(15,409)	(33,982)
Billings in excess of costs and earnings on uncompleted contracts	12,449	4,819
Refundable and accrued income taxes	2,130	7,079
Other, net	(1,474)	1,366
Net cash provided by (used in) operating activities	47,929	40,809
Investing Activities
Capital expenditures	(24,241)	(26,825)
Proceeds from sales of property, plant and equipment	774	64
Acquisition of business, net of cash acquired	0	184,826
Purchases of marketable securities	(9,066)	(5,436)
Sales/maturities of marketable securities	4,943	4,271
Other, net	(2,209)	1,099
Net cash provided by (used in) investing activities	(29,799)	(211,653)
Financing Activities
Borrowings on line of credit	205,000	284,200
Payments on line of credit	196,500	94,000
Shares withheld for taxes, net of stock issued to employees	(1,431)	(1,612)
Repurchase and retirement of common stock	0	10,833
Dividends paid	(8,823)	(7,994)
Proceeds from (Payments for) Other Financing Activities	496	1,759
Net cash provided by (used in) financing activities	(1,258)	171,520
Decrease in cash and cash equivalents	16,872	676
Effect of exchange rates on cash	(266)	1,555
Cash, cash equivalents and restricted cash at beginning of year	19,359	27,297
Cash, cash equivalents and restricted cash at end of period	35,965	29,528
Noncash Activity
Capital expenditures in accounts payable	$ 1,756	$ 1,196