Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 29, 2020
Income Statement [Abstract]
Net sales	$ 400,014	$ 357,973	$ 438,412
Type of revenue [extensible list]	Net sales	Net sales	Net sales
Cost of goods sold	$ 285,291	$ 254,207	$ 309,488
Type of cost, good or service [extensible list]	Cost of goods sold	Cost of goods sold	Cost of goods sold
Gross profit margin	$ 114,723	$ 103,766	$ 128,924
Selling, general and administrative	71,410	68,270	78,173
Gain from disposal of assets	(271)	(405)	(87)
Income from operations	43,584	35,901	50,838
Other income (expense)
Interest expense	(9)	(11)	(606)
Other, net	(1,631)	(2,603)	1,019
Total other income (expense)	(1,640)	(2,614)	413
Earnings from continuing operations before income taxes	41,944	33,287	51,251
Income tax expense	12,962	9,193	12,959
Net earnings	$ 28,982	$ 24,094	$ 38,292
Weighted average common shares outstanding
Basic	26,026,477	25,995,127	26,036,393
Diluted	26,109,341	25,995,127	26,036,393
Earnings per share
Basic	$ 1.11	$ 0.93	$ 1.47
Diluted	1.11	0.93	1.47
Cash dividends per share	$ 0.975	$ 0.900	$ 0.900