Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2023	Feb. 28, 2022	Feb. 28, 2021
Income Statement [Abstract]
Net sales	$ 431,837	$ 400,014	$ 357,973
Type of revenue [extensible list]	Net sales	Net sales	Net sales
Cost of goods sold	$ 300,787	$ 285,291	$ 254,207
Type of cost, good or service [extensible list]	Cost of goods sold	Cost of goods sold	Cost of goods sold
Gross profit	$ 131,050	$ 114,723	$ 103,766
Selling, general and administrative	70,793	71,410	68,270
Gain from disposal of assets	(5,896)	(271)	(405)
Income from operations	66,153	43,584	35,901
Other income (expense)
Interest expense	0	(9)	(11)
Other, net	(1,223)	(1,631)	(2,603)
Total other income (expense)	(1,223)	(1,640)	(2,614)
Earnings from continuing operations before income taxes	64,930	41,944	33,287
Income tax expense	17,630	12,962	9,193
Net earnings	$ 47,300	$ 28,982	$ 24,094
Weighted average common shares outstanding
Basic	25,818,737	26,026,477	25,995,127
Diluted	25,951,141	26,109,341	25,995,127
Earnings per share
Basic	$ 1.83	$ 1.11	$ 0.93
Diluted	1.82	1.11	0.93
Cash dividends per share	$ 1.00	$ 0.975	$ 0.90