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7. Stock-Based Compensation (Details1)
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3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2012
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Dec. 31, 2011
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| Stock-Based Compensation Details1 | ||||
| Employee Options Expected Life | 5 years | 5.04 years | 5.79 years | 5.71 years |
| Risk-free interest rate | 0.62% | 0.88% | 0.72% | 1.34% |
| Dividend yield | 0.00% | 0.00% | 0.00% | 0.00% |
| Volatility | 89.00% | 83.00% | 88.00% | 83.00% |
| X | ||||||||||
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- Definition
Employee options expected life No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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