Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details)

v3.3.0.814
Fair Value Measurements (Details) - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Sep. 30, 2014
Dec. 31, 2013
Assets:        
Cash and cash equivalents $ 12,413 $ 3,970 $ 3,006 $ 1,034
Marketable securities 1,975    
Total assets $ 12,413 5,945    
Liabilities:        
Warrants potentially settleable in cash 3,096 8,464    
Total liabilities 3,096 8,464    
Quoted Prices in Active Markets (Level 1) [Member]        
Assets:        
Cash and cash equivalents 12,413 $ 3,970    
Marketable securities      
Total assets $ 12,413 $ 3,970    
Liabilities:        
Warrants potentially settleable in cash    
Total liabilities    
Significant Other Observable Inputs (Level 2) [Member]        
Assets:        
Cash and cash equivalents    
Marketable securities   $ 1,975    
Total assets $ 1,975    
Liabilities:        
Warrants potentially settleable in cash    
Total liabilities    
Unobservable Inputs (Level 3) [Member]        
Assets:        
Cash and cash equivalents    
Marketable securities      
Total assets    
Liabilities:        
Warrants potentially settleable in cash $ 3,096 $ 8,464    
Total liabilities $ 3,096 $ 8,464