Unaudited Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2015	Nov. 30, 2014
Income Statement [Abstract]
Net sales	$ 139,451	$ 146,971	$ 440,788	$ 439,998
Cost of goods sold	98,877	110,455	322,040	329,906
Gross profit margin	40,574	36,516	118,748	110,092
Selling, general and administrative	23,430	23,817	69,552	67,436
Impairment of goodwill and trademarks		93,324		93,324
Gain from disposal of assets	(361)	(15)	(371)	(19)
Income (loss) from operations	17,505	(80,610)	49,567	(50,649)
Other income (expense)
Interest expense	(260)	(472)	(1,120)	(1,499)
Other, net	(302)	347	586	61
Total other expense	(562)	(125)	(534)	(1,438)
Earnings (loss) before income taxes	16,943	(80,735)	49,033	(52,087)
Provision for income taxes	6,269	(9,556)	18,142	1,044
Net earnings (loss)	$ 10,674	$ (71,179)	$ 30,891	$ (53,131)
Weighted average common shares outstanding
Basic	25,684,026	25,753,345	25,665,069	25,926,157
Diluted	25,728,144	25,753,345	25,692,930	25,926,157
Per share amounts
Net earnings (loss) - basic	$ 0.42	$ (2.76)	$ 1.20	$ (2.05)
Net earnings (loss) - diluted	0.41	(2.76)	1.20	(2.05)
Cash dividends per share	$ 0.175	$ 0.175	$ 0.525	$ 0.525