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STOCKHOLDERS' EQUITY (Details) (USD $) In Millions, except Share data, unless otherwise specified | 0 Months Ended | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  |  |  | 6 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 24, 2013 | Feb. 07, 2012 | Dec. 31, 2011 | Feb. 28, 2013 | Jan. 24, 2013 | Feb. 28, 2012 | Jun. 30, 2013 | Jun. 30, 2013 | Dec. 31, 2012 | May 23, 2012 | Feb. 07, 2012 Affiliates of third security, llc; december twenty-fifth 2010 | Feb. 07, 2012 Various institutional holders; february seventh, 2012 | Feb. 07, 2012 Affiliates of third security, llc; february seventh, 2012 | Mar. 13, 2013 Various institutional holders; january twenty-fourth, 2017 | Jun. 30, 2013 Affiliates of third security, llc; january twenty-fourth, 2017 | Mar. 13, 2013 Affiliates of third security, llc; january twenty-fourth, 2017
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares authorized |  |  |  |  |  |  | 150,000,000 | 150,000,000 | 100,000,000 | 150,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of common stock and convertable notes |  | $ 22.0 | $ 3.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares issued |  | 19,000,000 |  |  |  |  | 88,245,725 | 88,245,725 | 71,645,725 |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, sale price per share (in dollars per share) |  | $ 1.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock warrants, term |  | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock warrant, common stock called | 8,300,000 |  |  |  | 8,300,000 |  | 26,643,676 | 26,643,676 |  |  | 5,172,408 | [1] | 11,435,158 | [2] |  |  | 5,300,000 | [3] |  |  | 3,000,000 | [3]
Common stock warrant, exercise price |  |  |  |  |  |  |  |  |  |  | 0.58 | [1] | 1.08 | [2] | 1.08 | [2] | 0.75 | [3] |  |  | 0.75 | [3]
Convertible notes, common stock callable |  | 3,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible notes, warrants callable |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,736,110 | [2] |  |  |  |  |  |
Payments of stock issuance costs, reduction to equity |  |  |  |  |  |  |  | $ 1.5 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Private Placement, net, shares |  |  |  |  | 16,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,000,000 | [3] |  |
Share price | $ 0.50 |  |  |  | $ 0.50 |  | $ 0.40 | $ 0.40 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of warrant or right, number of securities called by warrants or rights, price per share | $ 0.75 |  |  |  | $ 0.75 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock warrants issued | 8,300,000 |  |  | 1,791,268 |  | 13,171,268 | 8,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | This warrant was issued in connection with the issuance of warrants to purchase shares of our Series A Preferred Stock to affiliates of Third Security, LLC in December 2010. The number of underlying shares shown reflects the number of shares of common stock issuable upon conversion of the shares of Series A Preferred Stock for which this warrant is currently exercisable.
[2] | These Warrants were issued in connection with the private placement completed in February 2012. Warrants were repriced and additional warrants were issued in connection with the warrants issued with the private placement completed in January 2013.
[3] | These warrants were issued in connection with the private placement completed in January 2013.

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