Fair Value (Tables)
 9 Months Ended
Sep. 30, 2012
Fair Value Disclosures [Abstract]  
Schedule of financial assets and liabilities at fair value on a recurring basis
 

 

Quoted Prices in Active

Significant

Significant

Markets for Identical

Other Observable

Unobservable

Items

Inputs

Inputs

Balance at September 30, 2012

Total

(Level 1)

(Level 2)

(Level 3)

Common stock warrant liability

$

1,594,323

$

-

$

-

$

1,594,323
Schedule of liabilities measured at fair value on a recurring basis using significant unobservable inputs


 

 

 

 

 

Fair Value

 

 

Measurement Using

 

 

Significant

Common stock warrant liability

 

Unobservable Inputs

 

 

 

Beginning of period - January 1, 2012

$

5,320,990 

 

 

 

Change in fair value of common stock warrants

(3,726,667)

 

 

 

Fair value of common stock warrant liability at September 30, 2012

$

1,594,323