Quarterly report pursuant to Section 13 or 15(d)

9. Capital Stock (Details)

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9. Capital Stock (Details) (USD $)
3 Months Ended
Jun. 30, 2012
PreModificationWarrantsMember
 
Assumption:  
Market price per share $ 1.96
Exercise price per share (weighted average) $ 2.76
Exercise price per share Upper $ 6
Risk-free interest rate Minimum 0.16%
Risk-free interest rate Maximum 0.41%
Expected term (years) Minimum 7 months 13 days
Expected term (years) Maximum 2 years 10 months 6 days
Volatility Minimum 74.50%
Volatility Maximum 85.70%
Dividend rate 0.00%
Weighted Average Fair Value per share $ 0.65
PostModificationWarrantsMember
 
Assumption:  
Market price per share $ 1.96
Exercise price per share (weighted average) $ 0.5
Exercise price per share Upper $ 0.5
Risk-free interest rate Minimum 0.06%
Risk-free interest rate Maximum 0.06%
Expected term (years) Minimum 1 month 13 days
Expected term (years) Maximum 1 month 13 days
Volatility Minimum 85.70%
Volatility Maximum 85.70%
Dividend rate 0.00%
Weighted Average Fair Value per share $ 1.46