Annual report pursuant to Section 13 and 15(d)

Derivatives (Details)

v2.4.0.8
Derivatives (Details) (USD $)
 12 Months Ended 163 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Dec. 31, 2010
Schedule of derivative warrant instruments activity        
Beginning balance, Units 5,146,338 3,389,771     
Warrants issued with Stock Offering, Units   242,190    
Placement agent warrants related to issuance of Stock Offering, Units   121,095    
Warrants issued with 2012 Common Stock Offering - A, Units   3,118,988    
Warrants issued with 2012 Common Stock Offering - B, Units   1,559,505    
Placement agent warrants related to 2012 Common Stock Offering, Units   467,845    
Transfer from liability classification to equity classification, Units (3,177,715) (3,753,056)    
Balance, Units 1,968,623 5,146,338 1,968,623   
Beginning balance, Fair Value $ 3,574,958 $ 4,439,613     
Warrants issued with Stock Offering, Fair Value   318,087    
Placement agent warrants related to issuance of Stock Offering, Fair Value   159,044    
Warrants issued with 2012 Common Stock Offering - A, Fair Value   1,409,554    
Warrants issued with 2012 Common Stock Offering - B, Fair Value   1,665,697    
Placement agent warrants related to 2012 Common Stock Offering, Fair Value   499,707    
Transfer from liability classification to equity classification, Fair Value 1,047,095 4,231,324 5,278,419  
Change in fair value 4,179,392 (685,420)    
Balance, Fair Value $ 6,707,255 $ 3,574,958 $ 6,707,255