Annual report pursuant to Section 13 and 15(d)

Derivatives (Details)

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Derivatives (Details) (USD $)
 12 Months Ended 151 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
Schedule of derivative warrant instruments activity      
Beginning balance, Units 3,389,771     
Warrants issued with Convertible Notes (See Note 5), Units   287,061  
Placement agent warrants related to issuance of Convertible Notes (See Note 5), Units   143,532  
Warrants issued with Stock Offering (See Note 9), Units 242,190 1,972,785  
Placement agent warrants related to issuance of Stock Offering (See Note 9), Units 121,095 986,393  
Warrants issued with 2012 Common Stock Offering - A (See Note 9), Units 3,118,988    
Warrants issued with 2012 Common Stock Offering - B (See Note 9), Units 1,559,505    
Placement agent warrants related to 2012 Common Stock Offering (See Note 9), Units 467,845    
Transfer from liability classification to equity classification, Units (3,753,056)    
Balance, Units 5,146,338 3,389,771 5,146,338
Beginning balance, Fair Value $ 4,439,613     
Warrants issued with Convertible Notes (See Note 5), Fair Value   377,150  
Placement agent warrants related to issuance of Convertible Notes (See Note 5), Fair Value   188,579  
Warrants issued with Stock Offering (See Note 9), Fair Value 318,087 2,591,900  
Placement agent warrants related to issuance of Stock Offering (See Note 9), Fair Value 159,044 1,295,950  
Warrants issued with 2012 Common Stock Offering - A (See Note 9), Fair Value 1,409,554    
Warrants issued with 2012 Common Stock Offering - B (See Note 9), Fair Value 1,665,697    
Placement agent warrants related to 2012 Common Stock Offering (See Note 9), Fair Value 499,707    
Transfer from liability classification to equity classification, Fair Value 4,231,324   4,231,324
Change in fair value (685,420) (13,966)  
Balance, Fair Value $ 3,574,958 $ 4,439,613 $ 3,574,958