Consolidated Balance Sheets (unaudited) (USD $) In Thousands, unless otherwise specified	Nov. 29, 2014	Mar. 01, 2014
Current assets
Cash and cash equivalents	$ 34,067	$ 28,465
Short-term available for sale securities	243	204
Receivables, net of allowance for doubtful accounts	174,996	154,914
Inventories	55,130	47,982
Refundable income taxes	0	973
Deferred tax assets	3,443	3,529
Other current assets	8,205	6,725
Total current assets	276,084	242,792
Property, plant and equipment, net	192,053	193,946
Available-for-sale Securities, Debt Securities, Noncurrent	10,739	11,273
Restricted investments	464	2,540
Goodwill	77,529	78,021
Intangible assets	25,132	27,198
Other assets	10,129	9,587
Total assets	592,130	565,357
Current liabilities
Accounts payable	55,516	47,241
Accrued payroll and related benefits	30,702	25,216
Accrued self-insurance reserves	6,874	6,683
Other current liabilities	24,573	35,088
Billings in excess of costs and earnings on uncompleted contracts	25,464	22,557
Current portion long-term debt	48	49
Accrued income taxes	174	0
Total current liabilities	143,351	136,834
Long-term debt	22,505	20,659
Unrecognized tax benefits	5,048	5,234
Long-term self-insurance reserves	7,436	7,977
Deferred tax liabilities	6,232	7,403
Other non-current liabilities	33,358	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 28,996,209 and 28,958,119, respectively	9,665	9,653
Additional paid-in capital	136,415	130,570
Retained earnings	243,029	225,367
Common stock held in trust	(804)	(791)
Deferred compensation obligations	804	791
Accumulated other comprehensive loss	(14,909)	(12,960)
Total shareholders’ equity	374,200	352,630
Total liabilities and shareholders' equity	$ 592,130	$ 565,357