Consolidated Balance Sheets (unaudited) (USD $) In Thousands, unless otherwise specified	Aug. 30, 2014	Mar. 01, 2014
Current assets
Cash and cash equivalents	$ 24,648	$ 28,465
Short-term available for sale securities	393	204
Receivables, net of allowance for doubtful accounts	165,429	154,914
Inventories	51,289	47,982
Refundable income taxes	7,774	973
Deferred tax assets	3,271	3,529
Other current assets	8,251	6,725
Total current assets	261,055	242,792
Property, plant and equipment, net	195,250	193,946
Available-for-sale Securities, Debt Securities, Noncurrent	6,476	11,273
Restricted investments	947	2,540
Goodwill	78,594	78,021
Intangible assets	26,745	27,198
Other assets	9,870	9,587
Total assets	578,937	565,357
Current liabilities
Accounts payable	46,935	47,241
Accrued payroll and related benefits	23,941	25,216
Accrued self-insurance reserves	8,050	6,683
Other current liabilities	27,578	35,088
Billings in excess of costs and earnings on uncompleted contracts	30,664	22,557
Current portion long-term debt	53	49
Total current liabilities	137,221	136,834
Long-term debt	21,446	20,659
Unrecognized tax benefits	5,108	5,234
Long-term self-insurance reserves	7,166	7,977
Deferred tax liabilities	8,876	7,403
Other non-current liabilities	32,830	34,620
Commitments and contingent liabilities (Note 13)
Shareholders' equity
Common stock of $0.33-1/3 par value; authorized 50,000,000 shares; issued and outstanding 28,956,086 and 28,958,119, respectively	9,653	9,653
Additional paid-in capital	134,392	130,570
Retained earnings	232,601	225,367
Common stock held in trust	(796)	(791)
Deferred compensation obligations	796	791
Accumulated other comprehensive loss	(10,356)	(12,960)
Total shareholders’ equity	366,290	352,630
Total liabilities and shareholders' equity	$ 578,937	$ 565,357