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10. Fair Value Measurements (Tables)
 12 Months Ended
Dec. 31, 2015
Fair Value Measurements Tables  
Schedule of financial liabilities measured at fair value
                         
    Total     Level 1     Level 2     Level 3  
2015                        
Warrant liability   $ 54     $ -     $ -     $ 54  
2014                                
Warrant liability   $ 108     $ -     $ -     $ 108  
Schedule of activity for liabilities measured at fair value
Balance as of December  31, 2013   $ 60  
Related change in fair value     48  
Balance as of December 31, 2014   $ 108  
Related change in fair value     (54 )
Balance as of December 31, 2015   $ 54