CONSOLIDATED STATEMENTS OF EARNINGS (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	May 31, 2014	May 31, 2013
Income Statement [Abstract]
Net sales	$ 141,186	$ 138,466
Cost of goods sold	105,798	102,671
Gross profit margin	35,388	35,795
Selling, general and administrative	21,795	22,205
Gain from disposal of assets	(1)	(7)
Income from operations	13,594	13,597
Other income (expense)
Interest expense	(502)	(251)
Other, net	(343)	157
Total other expense	(845)	(94)
Earnings before income taxes	12,749	13,503
Provision for income taxes	4,717	4,997
Net earnings	$ 8,032	$ 8,506
Weighted average common shares outstanding
Basic	25,973,227	26,038,068
Diluted	25,987,377	26,055,869
Per share amounts
Net earnings-basic	$ 0.31	$ 0.33
Net earnings-diluted	$ 0.31	$ 0.33
Cash dividends per share	$ 0.175