XML 39 R52.htm IDEA: XBRL DOCUMENT v2.4.0.6
Fair Value Measurements (Details Textual) (USD $)
 12 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2012
First warrant [Member]
Dec. 31, 2011
First warrant [Member]
Dec. 31, 2012
Using Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Dec. 31, 2011
Using Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Dec. 31, 2012
Using Significant Unobservable Inputs (Level 3) [Member]
warrant
Dec. 31, 2011
Using Significant Unobservable Inputs (Level 3) [Member]
Dec. 31, 2010
Using Significant Unobservable Inputs (Level 3) [Member]
Sep. 30, 2012
Using Significant Unobservable Inputs (Level 3) [Member]
First warrant [Member]
Dec. 31, 2012
Using Significant Unobservable Inputs (Level 3) [Member]
First warrant [Member]
Mar. 31, 2012
Using Significant Unobservable Inputs (Level 3) [Member]
First warrant [Member]
Mar. 31, 2012
Using Significant Unobservable Inputs (Level 3) [Member]
Second warrant [Member]
Dec. 31, 2012
Using Significant Unobservable Inputs (Level 3) [Member]
Second warrant [Member]
Marketable Securities and Fair Value Measurements (Textual) [Abstract]                              
Number of shares held in an affiliated entity           8,220,775 8,220,775                
Number of warrants received to purchase shares of common stock               2              
Common stock purchase warrant                         1,000,000 3,000,000  
Term of the warrants in years                       5 years     5 years
Exercise price of a five-year warrant                     $ 1.20     $ 1.00  
Long-term asset associated with warrants $ 267,000                            
Gain on sale of asset 501,000                            
Change in the fair value (2,300,000) (8,800,000) (2,400,000) 334,000 137,000     2,316,420 8,827,658 2,403,924          
Expiration of warrants date range start               July 2014              
Expiration of warrants date range end               December 2016              
Common stock warrants $ 2,859,899 $ 5,176,319