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SHAREHOLDERS' EQUITY (Details 2) (USD $) | 3 Months Ended | 0 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Feb. 12, 2014 Registered direct offering | Jan. 31, 2014 BTIG LLC ATM Sales Agreement | Oct. 31, 2011 BTIG LLC ATM Sales Agreement | Mar. 31, 2014 BTIG LLC ATM Sales Agreement | Oct. 31, 2011 BTIG LLC ATM Sales Agreement Maximum | Oct. 28, 2011 BTIG LLC ATM Sales Agreement Maximum
SHAREHOLDERS' EQUITY |  |  |  |  |  |  |  |
Shares of common stock sold |  |  | 3,960,000 | 523,350 |  |  |  |
Price per share under private placement (in dollars per share) |  |  | $ 2.60 |  |  |  |  |
Proceeds from sale of shares of common stock | $ 11,248,711 | $ 3,633,883 | $ 9,372,885 | $ 1,875,826 |  |  |  |
Aggregate offering price of the shares of common stock available to be sold under ATM Sales Agreement |  |  |  |  |  | $ 7,100,000 | $ 15,000,000 | $ 15,000,000
Percentage of commission to be paid on the gross proceeds from the sale of shares under ATM Sales Agreement |  |  |  |  | 3.00% |  |  |

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