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Income Taxes - Reconciliation of Change in Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Feb. 28, 2017 | Feb. 29, 2016
Income Tax Disclosure [Abstract] |  |
Beginning Balance | $ 225 | $ 300
Additions based on tax positions related to the current year | 99 | 25
Reductions due to lapse of statues of limitations | (75) | (100)
Ending Balance | $ 249 | $ 225

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- Definition Unrecognized Tax Benefits Increases Decreases Resulting From Current Period Tax Positions + References No definition available. + Details
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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=65882285&loc=SL6600010-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Unrecognized Tax Benefit -URI http://asc.fasb.org/extlink&oid=6527854 + Details
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- Definition Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=65882285&loc=SL6600010-109319 + Details
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