XML 57 R33.htm IDEA: XBRL DOCUMENT v2.4.0.8
Marketable Securities and Fair Value Measurements (Details 2) (Using Significant Unobservable Inputs (Level 3) [Member], USD $)
9 Months Ended
Sep. 30, 2013
Using Significant Unobservable Inputs (Level 3) [Member]
 
Change in fair value of the financial assets  
Balance at beginning of year $ 267,200
Decrease in fair value included in change in fair value of common stock warrants (22,300)
Balance at end of year $ 244,900