Unaudited Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	May 31, 2017	May 31, 2016
Income Statement [Abstract]
Net sales	$ 94,590	$ 90,410
Cost of goods sold	64,671	63,716
Gross profit margin	29,919	26,694
Selling, general and administrative	17,372	16,071
Loss from disposal of assets	15	6
Income from operations	12,532	10,617
Other income (expense)
Interest expense	(190)	(2)
Other, net	13	(7)
Total other expense	(177)	(9)
Earnings from continuing operations before income taxes	12,355	10,608
Provision for income taxes	4,571	3,925
Earnings from continuing operations	7,784	6,683
Income from discontinued operations, net of tax		2,481
Loss on sale of discontinued operations, net of tax		(26,042)
Earnings (loss) from discontinued operations, net of tax		(23,561)
Net earnings (loss)	$ 7,784	$ (16,878)
Weighted average common shares outstanding
Basic	25,422,856	25,783,770
Diluted	25,436,787	25,810,735
Earnings (loss) per share - basic and diluted
Continuing operations	$ 0.31	$ 0.26
Discontinued operations		(0.91)
Net earnings (loss)	0.31	(0.65)
Cash dividends per share	$ 0.175	$ 0.175