Consolidated Balance Sheets (unaudited) (USD $) In Thousands, unless otherwise specified	May 31, 2014	Mar. 01, 2014
Current assets
Cash and cash equivalents	$ 17,093	$ 28,465
Short-term available for sale securities	564	204
Receivables, net of allowance for doubtful accounts	154,719	154,914
Inventories	50,422	47,982
Refundable income taxes	0	973
Deferred tax assets	3,246	3,529
Other current assets	7,616	6,725
Total current assets	233,660	242,792
Property, plant and equipment, net	197,144	193,946
Available-for-sale Securities, Debt Securities, Noncurrent	10,234	11,273
Restricted investments	1,742	2,540
Goodwill	78,562	78,021
Intangible assets	27,221	27,198
Other assets	9,877	9,587
Total assets	558,440	565,357
Current liabilities
Accounts payable	47,033	47,241
Accrued payroll and related benefits	20,305	25,216
Accrued self-insurance reserves	6,777	6,683
Other current liabilities	31,217	35,088
Billings in excess of costs and earnings on uncompleted contracts	23,542	22,557
Current portion long-term debt	52	49
Accrued income taxes	134	0
Total current liabilities	129,060	136,834
Long-term debt	20,659	20,659
Unrecognized tax benefits	5,367	5,234
Long-term self-insurance reserves	7,383	7,977
Deferred tax liabilities	6,738	7,403
Other non-current liabilities	32,581	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 29,102,733 and 28,958,119, respectively	9,701	9,653
Additional paid-in capital	133,359	130,570
Retained earnings	224,382	225,367
Common stock held in trust	(788)	(791)
Deferred compensation obligations	788	791
Accumulated other comprehensive loss	(10,790)	(12,960)
Total shareholders’ equity	356,652	352,630
Total liabilities and shareholders' equity	$ 558,440	$ 565,357