Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Tables)

v3.4.0.3
Fair Value Measurements (Tables)
 3 Months Ended 12 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Schedule of Fair Value, Financial Assets and Liabilities [Table Text Block]
($ rounded to nearest thousand)     Fair value measurement using  
      Quoted prices     Significant     Significant        
      in     other     unobservable        
      active markets     observable     inputs        
      (Level 1)     inputs (Level     (Level 3)     Total  
            2)              
Balance at March 31, 2016                          
Liabilities:                          
Warrant liability   $   —   $   —   $ 1,073,000   $ 1,073,000  
($ rounded to nearest thousand)     Fair value measurement using  
      Quoted prices     Significant     Significant        
      in     other     unobservable        
      active markets     observable     inputs        
      (Level 1)     inputs (Level     (Level 3)     Total  
            2)              
Balance at December 31, 2015                          
Liabilities:                          
Warrant liability   $   —   $   —   $ 2,327,000   $ 2,327,000  
Schedule of Reconciliation of Warrant Liability [Table Text Block]
($ rounded to nearest thousand)   Warrant  
    Liability  
       
Balance at December 31, 2014 $ 4,633,000  
Change in fair value of warrant liability   (2,306,000 )
Balance at December 31, 2015 $ 2,327,000  
Change in fair value of warrant liability   (1,254,000 )
Balance at March 31, 2016 $ 1,073,000