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Income Taxes - Reconciliation of Change in Unrecognized Tax Benefits (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Feb. 28, 2014
Feb. 28, 2013
Income Tax Disclosure [Abstract]    
Balance at beginning of year $ 96 $ 337
Additions (reductions) based on tax positions related to the current year 182 (211)
Reductions due to lapses of statutes of limitations (32) (30)
Balance at end of year $ 246 $ 96