Consolidated Results of Operations (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 30, 2013	Dec. 01, 2012	Nov. 30, 2013	Dec. 01, 2012
Income Statement [Abstract]
Net sales	$ 199,430	$ 190,416	$ 557,028	$ 520,490
Cost of sales	156,042	148,176	438,719	411,038
Gross profit	43,388	42,240	118,309	109,452
Selling, general and administrative expenses	30,681	30,829	90,129	88,170
Operating income	12,707	11,411	28,180	21,282
Interest income	206	253	593	569
Interest expense	228	330	973	945
Other income (expense), net	107	198	72	609
Earnings from continuing operations before income taxes	12,792	11,532	27,872	21,515
Income tax expense (benefit)	3,124	3,480	7,924	6,800
Net earnings	$ 9,668	$ 8,052	$ 19,948	$ 14,715
Earnings per share - basic
Net earnings	$ 0.34	$ 0.29	$ 0.70	$ 0.53
Earnings per share - diluted
Net earnings	$ 0.33	$ 0.28	$ 0.68	$ 0.52
Weighted average basic shares outstanding	28,483	28,029	28,439	27,913
Weighted average diluted shares outstanding	29,376	28,832	29,308	28,497
Cash dividends declared per common share	$ 0.0900	$ 0.0900	$ 0.2700	$ 0.2700