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Summary of Options Granted under 2007 Plan (Detail) (2007 Employee, Director and Consultant Stock Plan equity compensation plan, USD $)
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12 Months Ended | |
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Mar. 31, 2014
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Mar. 31, 2013
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2007 Employee, Director and Consultant Stock Plan equity compensation plan
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| Number of Shares | ||
| Beginning Balance | 959,670 | 959,670 |
| Granted | ||
| Vested | ||
| Exercised | (240,000) | |
| Ending Balance | 719,670 | 959,670 |
| Weighted Average Grant Date Fair Value | ||
| Outstanding Weighted Average Grant Date Fair Value Beginning Balance | $ 9.00 | $ 9.00 |
| Granted | ||
| Vested | ||
| Exercised | $ 9.59 | |
| Outstanding Weighted Average Grant Date Fair Value Ending Balance | $ 9.59 | $ 9.00 |
| X | ||||||||||
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- Definition
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Weighted Average Grant Date Fair Value No definition available.
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| X | ||||||||||
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- Definition
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Grant Date Fair Value No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Net number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Number of options vested. No definition available.
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| X | ||||||||||
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- Definition
Weighted average grant-date fair value of options vested. No definition available.
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| X | ||||||||||
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- Definition
Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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