Income Taxes - Components of Deferred Income Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Feb. 28, 2019	Feb. 28, 2018
Deferred tax assets
Allowance for doubtful receivables	$ 204	$ 255
Inventories	924	738
Employee compensation and benefits	820	703
Pension and noncurrent employee compensation benefits	2,653	2,888
Net operating loss and foreign tax credits	429	429
Stock options	326	285
Total deferred tax assets	5,356	5,298
Deferred tax liabilities
Property, plant and equipment	5,485	4,140
Goodwill and other intangible assets	10,710	7,158
Property tax	59	158
Other		31
Total deferred tax liabilities	16,254	11,487
Net deferred income tax liabilities	$ 10,898	$ 6,189