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LIQUIDITY (Details) (USD $) | 12 Months Ended |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009 | Mar. 18, 2013 Rights offering item | Mar. 18, 2013 RCF Rights offering Short term financing | Dec. 31, 2012 BTIG, LLC ATM Sales Agreement | Dec. 31, 2011 BTIG, LLC ATM Sales Agreement | Dec. 31, 2011 BTIG, LLC Maximum ATM Sales Agreement | Oct. 31, 2011 BTIG, LLC Maximum ATM Sales Agreement
LIQUIDITY |  |  |  |  |  |  |  |  |  |
Negative cash flow from operations | $ 14,864,171 | $ 10,400,802 | $ 7,360,074 |  |  |  |  |  |  |
Cash | 4,664,596 | 2,890,263 | 15,386,472 | 6,092,068 |  |  |  |  |  |
LIQUIDITY |  |  |  |  |  |  |  |  |  |
Number of subscription rights issued for each share of common stock owned or subject to a warrant |  |  |  |  | 1 |  |  |  |  |
Number of shares of common stock entitled to be purchased for each subscription right |  |  |  |  | 0.3119 |  |  |  |  |
Exercise price (in dollars per share) |  |  |  |  | $ 2.55 |  |  |  |  |
Short term financing repaid |  |  |  |  |  | 5,000,000 |  |  |  |
Net proceeds from sale of shares of common stock | 20,264,692 | 352,855 | 19,138,091 |  | 8,900,000 |  | 5,400,000 | 325,000 |  |
Aggregate offering price of the shares of common stock available to be sold under ATM Sales Agreement |  |  |  |  |  |  | $ 9,000,000 |  | $ 15,000,000 | $ 15,000,000
Shares of common stock sold under ATM Sales Agreement |  |  |  |  |  |  | 973,000 | 47,700 |  |

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