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Equity (Details Textual) (USD $) | 3 Months Ended | 6 Months Ended | 12 Months Ended | 127 Months Ended | 6 Months Ended | 1 Months Ended | 12 Months Ended | 127 Months Ended | 151 Months Ended | 12 Months Ended | 1 Months Ended
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Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012 | Dec. 31, 2012 | Dec. 31, 2007 | Dec. 31, 2010 | Jun. 30, 2013 A Warrant [Member] | May 31, 2013 Stock Options [Member] Former Director And Consultants [Member] | Dec. 31, 2011 Management Firm [Member] | Dec. 31, 2012 Common Stock [Member] | Dec. 31, 2011 Common Stock [Member] | Dec. 31, 2007 Common Stock [Member] | Dec. 31, 2010 Common Stock [Member] | Dec. 31, 2012 Common Stock [Member] | Dec. 31, 2012 Common Stock [Member] A Warrant [Member] | Dec. 31, 2012 Common Stock [Member] B Warrants [Member] | Dec. 31, 2012 Common Stock [Member] Management Firm [Member] | Dec. 31, 2011 Common Stock [Member] Management Firm [Member] | Dec. 31, 2012 Common Stock [Member] Laidlaw & Co [Member] | Dec. 31, 2011 Common Stock [Member] Laidlaw & Co [Member] | Dec. 31, 2012 Common Stock [Member] Laidlaw & Co [Member] Placement Agent [Member] | Dec. 31, 2011 Common Stock [Member] Laidlaw & Co [Member] Placement Agent [Member] | Dec. 19, 2012 Series E Preferred Stock
Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued for services, Shares |  |  |  |  |  |  | 66,402 |  |  |  |  |  | 66,402 |  |  |  |  |  |  |  |  |  |  |
Common stock issued for services |  |  |  |  |  | $ 398,810 | $ 398,810 |  |  |  |  |  | $ 398,810 |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase common stock offering |  |  |  |  |  |  |  |  |  |  | 242,190 | 19,972,785 |  |  |  |  |  |  |  |  |  |  |  |
Raised offering of common stock |  |  |  |  | 5,151,450 |  |  |  |  |  | 759,300 | 6,184,967 |  | 42,711,791 |  |  |  |  |  |  |  |  |  |
Common stock issued in stock offering, shares |  |  |  |  | 3,118,988 |  |  |  |  |  | 968,759 | 7,891,141 |  | 5,707,259 |  |  |  |  |  |  |  |  |  |
Sale of common stock, net offering |  |  |  |  | 4,469,776 |  |  |  |  |  | 660,164 | 5,379,367 |  |  |  |  |  |  |  |  |  |  |  |
Placement agent cash fees |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 618,174 |  |  |  |  | 91,116 | 742,196 |  |  |
Placement agent commission |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 515,145 |  |  |  |  | 75,930 | 618,497 |  |  |
Placement agent expense reimbursement |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 103,029 |  |  |  |  | 15,186 | 123,699 |  |  |
Warrants issued to purchase common stock, shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 467,845 | 3,118,988 | 1,559,505 | 1,716,340 | 1,974,774 | 121,095 | 986,393 | 588,940 | 1,129,925 |
Exercise price of warrant |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.78 | $ 1.65 | $ 2.48 | $ 0.01 | $ 0.01 | $ 0.78 | $ 0.78 | $ 0.78 | $ 0.78 | $ 0.26
Warrants expiration term |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 years | 120 days | 5 years |  |  | 7 years | 7 years |  |  |
Warrants issued to purchase common stock, fair value |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 499,707 |  |  | 1,957,754 | 2,153,442 | 159,044 | 188,579 |  |  |
Placement agent services fees |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 60,000 |  |  |  |  | 8,020 | 60,904 |  |  |
Bank escrow fee |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,500 | 2,500 |  |  |
Common stock issued by conversion of note |  |  |  |  |  |  |  |  |  |  | 1,252,550 |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued management fees |  |  |  |  |  |  |  |  |  | 96,744 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued to former shareholder under share exchange agreement, Shares |  |  |  |  | 400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued to former shareholders under share exchange agreement, Shares |  |  |  |  | 1,986,566 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unrecognized share based compensation expense |  |  | 1,086,848 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Recorded option expense | 94,200 | 40,410 | 188,400 | 240,400 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount Paid For Cancellation Of Shares By Company |  |  |  |  |  |  |  |  | 25,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares Purchased After Cancelation Of Options |  |  |  |  |  |  |  |  | 49,950 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise Price |  |  |  |  |  |  |  | $ 1.65 | $ 1.50 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Warrant Exercises |  |  | $ 3,463,641 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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