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Warrants (Details Textual) (USD $) | 3 Months Ended |  | 3 Months Ended | 1 Months Ended |
--- | --- | --- | --- | --- | ---
Mar. 31, 2013 | Mar. 31, 2012 | Dec. 31, 2012 | Mar. 31, 2013 Hillair Capital Investments Lp [Member] | Mar. 31, 2013 Merriman Capital Inc [Member] | Mar. 31, 2013 Next View Capital LP and another investor [Member] | Mar. 31, 2013 2010 Private Placement [Member] | May 31, 2012 2012 Private Placement [Member] | Mar. 31, 2012 2012 Private Placement [Member] | Mar. 31, 2013 2012 Private Placement [Member]
Warrants (Textual) |  |  |  |  |  |  |  |  |  |
Number of common stock entitled in warrants | 18,233 |  |  | 2,604,651 | 52,093 | 651,163 | 1,044,584 | 29,700 | 86,323 |
Number of common stock entitled in warrants one | 18,233 |  |  |  | 52,093 | 260,465 |  |  |  |
Investment Warrants, Exercise Price | $ 0.4488 |  |  | $ 0.4488 | $ 0.4488 | $ 0.4488 | $ 0.25 | $ 0.35 | $ 0.35 |
Investment warrants exercise price one | $ 0.43 |  |  |  | $ 0.43 |  |  |  |  |
Expiration date of warrants |  |  |  | Jun. 27, 2018 |  |  | Oct. 28, 2015 | May 22, 2017 | Mar. 27, 2017 |
Fair value of warrants | $ (11,024) |  | $ (8,166) | $ 130,423 | $ 8,166 | $ 45,648 | $ 67,599 | $ 702,872 |  | $ 6,626
Fair value of warrants one |  |  |  |  | 2,858 |  |  |  |  |
Change in fair value of financial instruments | $ 219,495 | $ 10,446 |  |  |  |  |  |  |  |

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