Quarterly report pursuant to Section 13 or 15(d)

Organization, Description of Business and Liquidity and Capital Resources (Details)

v3.19.3
Organization, Description of Business and Liquidity and Capital Resources (Details) - USD ($)
$ / shares in Units, $ in Thousands
 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Organization, Description of Business and Liquidity and Capital Resources      
Common Stock, Shares, Issued 39,578,371   26,610,183
Proceeds From Issuance of Common Shares, At-the-Market Offering $ 22,515 $ 0  
Market Issuance      
Organization, Description of Business and Liquidity and Capital Resources      
Common Stock, Shares, Issued 3,500,000    
Proceeds From Issuance of Common Shares, At-the-Market Offering $ 22,500    
Sale of Stock, Price Per Share $ 6.42    
Stock Issued During Period Shares , At The Market Offering 22,000,000    
Public Offering      
Organization, Description of Business and Liquidity and Capital Resources      
Common Stock, Shares, Issued 7,900,000    
Proceeds From Issuance of Common Shares, At-the-Market Offering $ 31,600    
Sale of Stock, Price Per Share $ 4.00    
Stock Issued During Period Shares , At The Market Offering 29,500,000