Cost and Accumulated Amortization of Intangible Assets (Detail) - USD ($) $ in Thousands	Feb. 28, 2017	Feb. 29, 2016
Finite-Lived Intangible Assets [Line Items]
Cost	$ 0	$ 4,102
Accumulated Amortization	0	4,102
Patents/designs
Finite-Lived Intangible Assets [Line Items]
Cost	0	233
Accumulated Amortization	0	233
Customer Lists
Finite-Lived Intangible Assets [Line Items]
Cost	0	2,863
Accumulated Amortization	0	2,863
Non-compete Agreements
Finite-Lived Intangible Assets [Line Items]
Cost	0	1,000
Accumulated Amortization	0	1,000
Other Intangibles
Finite-Lived Intangible Assets [Line Items]
Cost	0	6
Accumulated Amortization	$ 0	$ 6

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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