Quarterly report pursuant to Section 13 or 15(d)

Organization (Details)

v3.20.2
Organization (Details)
$ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended
Mar. 24, 2020
Jul. 28, 2020
USD ($)
May 31, 2020
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Mar. 31, 2019
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Dec. 31, 2019
USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]                  
Reverse stock split 0.067                
Accumulated deficit       $ 197,579     $ 197,579   $ 183,278
Cash used in operations             5,745 $ 9,708  
Cash       13,260     13,260   $ 10,872
Debt covenant, unrestricted cash       1,750     1,750    
Unrestricted cash             $ 11,510    
Reduction in workforce     35.00%       35.00%    
Subsidiary, Sale of Stock [Line Items]                  
Equity financing, net       7,082 $ 2,393 $ 7,305      
Proceeds from exercise of warrants, net       $ 785     $ 785 $ 0  
Subsequent Event | June 2020 Investor Warrants                  
Subsidiary, Sale of Stock [Line Items]                  
Proceeds from exercise of warrants, net   $ 2,422              
Direct offering                  
Subsidiary, Sale of Stock [Line Items]                  
Equity financing, net             $ 7,082