Unaudited Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	May. 31, 2015	May. 31, 2014
Income Statement [Abstract]
Net sales	$ 150,576	$ 141,186
Cost of goods sold	113,032	105,798
Gross profit margin	37,544	35,388
Selling, general and administrative	22,674	21,795
Gain from disposal of assets	(2)	(1)
Income from operations	14,872	13,594
Other income (expense)
Interest expense	(478)	(502)
Other, net	164	(343)
Total other expense	(314)	(845)
Earnings before income taxes	14,558	12,749
Provision for income taxes	5,387	4,717
Net earnings	$ 9,171	$ 8,032
Weighted average common shares outstanding
Basic	25,586,596	25,973,227
Diluted	25,599,055	25,987,377
Per share amounts
Net earnings - basic	$ 0.36	$ 0.31
Net earnings - diluted	0.36	0.31
Cash dividends per share	$ 0.175	$ 0.175