Income Taxes - Components of Deferred Income Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2023	Feb. 28, 2022	Feb. 28, 2021	Feb. 29, 2020
Deferred tax assets
Allowance for doubtful receivables			$ 280	$ 345
Inventories			1,032	1,170
Employee compensation and benefits			659	833
Pension and noncurrent employee compensation benefits			1,827	1,009
Property tax	$ 161	$ 0
Operating lease liabilities			3,870	3,274
Net operating loss and foreign tax credits			1,033	996
Other			274	277
Total deferred tax assets			8,975	8,065
Less: valuation allowance			(408)	(1,242)
Total deferred tax assets, net			8,567	6,823
Deferred tax liabilities
Property, plant and equipment			6,167	4,902
Goodwill and other intangible assets			9,889	9,683
Right-of-use assets			3,797	3,204
Property tax			40	0
Other			79	132
Total deferred tax liabilities			19,972	17,921
Net deferred income tax liabilities			$ 11,405	$ 11,098