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Issue of warrants to investors (Details) (USD $)
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3 Months Ended | 12 Months Ended |
|---|---|---|
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Mar. 31, 2013
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Dec. 31, 2012
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| Issue of common stock | 0 | 5,270,000 |
| Issue of warrants | 0 | 492,000 |
| Exercise of cashless warrants for common stock | 35,000 | 233,333 |
| Shares recieved as part of cashless exercise of warrants | 21,111 | 11,797 |
| Exercise price of warrants | $ 0.10 | $ 0.15 |
| X | ||||||||||
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- Definition
Exercise of cashless warrants for common stock No definition available.
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| X | ||||||||||
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- Definition
Exercise price of warrants No definition available.
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| X | ||||||||||
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- Definition
Issue of common stock No definition available.
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| X | ||||||||||
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- Definition
Issue of warrants No definition available.
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| X | ||||||||||
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- Definition
Shares recieved as part of cashless exercise of warrants No definition available.
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