Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation - 2015 Inducement Award Plan (Details)

v3.20.1
Stock-based Compensation - 2015 Inducement Award Plan (Details) - shares
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Granted (shares) 2,563,400  
2015 Inducement Award Plan    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Possible future issuance under equity compensation plan (in shares) 315,500  
Granted (shares) 0 0