Annual report pursuant to Section 13 and 15(d)

Income Taxes - Tax credit carryforward (Details)

v3.20.1
Income Taxes - Tax credit carryforward (Details)
$ in Millions
12 Months Ended
Dec. 31, 2019
USD ($)
Operating Loss Carryforwards  
Operating loss carryforward offset (as a percent) 80.00%
Federal Orphan Credit  
Operating Loss Carryforwards  
Tax credit carry forward amount $ 1.2
California | Research and Development Credit  
Operating Loss Carryforwards  
Tax credit carry forward amount $ 19.8