Segment Reporting - Schedule of Segment Financial Information of Reportable Segments (Detail) - USD ($) $ in Thousands		12 Months Ended
		Feb. 28, 2025	Feb. 29, 2024	Feb. 28, 2023
Segment Reporting Information [Line Items]
Segment operating net sales		$ 394,618	$ 420,109	$ 431,837
Segment operating expenses
Segment cost of goods sold		277,324	294,767	300,787
Selling, general, and administrative expenses
SG&A expenses		65,378	68,830	70,793
Other segment items
(Loss) gain from disposal of assets		(58)	53	(5,896)
Interest (income) expense		(4,872)	(3,973)	(771)
Other expense		1,392	1,309	1,994
Provision for income tax		15,232	16,526	17,630
Consolidated net earnings		(40,222)	(42,597)	(47,300)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Segment operating net sales		394,618	420,109	431,837
Segment operating expenses
Product purchases		126,993	139,131	139,945
Compensation expense		83,082	85,975	86,683
Product supplies		24,623	26,439	28,583
Manufacturing depreciation		8,275	9,189	9,580
Other product cost	[1]	34,351	34,033	35,996
Segment cost of goods sold		277,324	294,767	300,787
Selling, general, and administrative expenses
Compensation expense		43,731	44,261	46,766
Depreciation expense		568	674	600
Amortization expense		7,726	7,649	7,176
Other expense	[2]	13,353	16,246	16,251
SG&A expenses		65,378	68,830	70,793
Other segment items
(Loss) gain from disposal of assets		(58)	53	(5,896)
Interest (income) expense		(4,872)	(3,973)	(771)
Other expense		1,392	1,308	1,994
Provision for income tax		15,232	16,526	17,630
Consolidated net earnings		$ 40,222	$ 42,597	$ 47,300

[1] Other product cost includes manufacturing overhead and freight expenses.

[2] SG&A other expenses include utility services, bank fee and professional services not included in the manufacturing process.