Income Taxes (Details 2) (USD $) In Thousands, unless otherwise specified	Feb. 28, 2013	Feb. 29, 2012
Current deferred tax assets related to:
Allowance for doubtful receivables	$ 1,527	$ 1,683
Inventories	2,522	1,952
Employee compensation and benefits	1,770	1,667
Other	1	191
Total	5,820	5,493
Noncurrent deferred tax (liabilities) assets related to:
Property, plant and equipment	4,802	4,362
Goodwill and other intangible assets	23,451	22,280
Pension and noncurrent employee compensation benefits	(4,987)	(4,101)
Net operating loss and foreign tax credits	(201)	(285)
Property tax	554	506
Currency exchange	357	633
Stock options exercised	(798)	(382)
Other	6	16
Total	$ 23,184	$ 23,029