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Stock Option Plan and Stock Based Compensation - Summary of Unvested Stock Options (Detail) (USD $) | 6 Months Ended
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Aug. 31, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Unvested Beginning Balance, Number of Options | 112,211
New grants, Number of Options | 31,418
Vested, Number of Options | (63,869)
Forfeited, Number of Options |
Unvested Ending Balance, Number of Options | 79,760
Unvested Beginning Balance, Weighted Average Grant Date Fair Value | $ 2.89
New grants, Weighted Average Grant Date Fair Value | $ 2.70
Vested, Weighted Average Grant Date Fair Value | $ 3.27
Forfeited, Weighted Average Grant Date Fair Value |
Unvested Ending Balance, Weighted Average Grant Date Fair Value | $ 2.51

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