Consolidated Results of Operations (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Aug. 31, 2013	Sep. 01, 2012	Aug. 31, 2013	Sep. 01, 2012
Income Statement [Abstract]
Net sales	$ 178,287	$ 175,940	$ 357,598	$ 330,074
Cost of sales	139,752	139,803	282,677	262,862
Gross profit	38,535	36,137	74,921	67,212
Selling, general and administrative expenses	29,177	28,584	59,449	57,342
Operating income	9,358	7,553	15,472	9,870
Interest income	213	43	387	315
Interest expense	246	251	745	614
Other income (expense), net	(104)	393	(34)	411
Earnings from continuing operations before income taxes	9,221	7,738	15,080	9,982
Income tax expense (benefit)	3,100	2,681	4,800	3,319
Net earnings	$ 6,121	$ 5,057	$ 10,280	$ 6,663
Earnings per share - basic
Net earnings	$ 0.21	$ 0.18	$ 0.36	$ 0.24
Earnings per share - diluted
Net earnings	$ 0.21	$ 0.18	$ 0.35	$ 0.24
Weighted average basic shares outstanding	28,394	27,922	28,417	27,855
Weighted average diluted shares outstanding	29,211	28,436	29,274	28,330
Cash dividends declared per common share	$ 0.0900	$ 0.0900	$ 0.1800	$ 0.1800