Annual report pursuant to Section 13 and 15(d)

Income Taxes - Summary of Reconciliation of Statutory Federal Income Tax Rate and Effective Income Tax Rate (Details)

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Income Taxes - Summary of Reconciliation of Statutory Federal Income Tax Rate and Effective Income Tax Rate (Details)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]    
Tax benefit at federal statutory rate (21.00%) (21.00%)
State income taxes, net of federal benefit (5.00%) (5.00%)
Derivative liabilities 0.00% 22.90%
Other 0.80% (3.50%)
Tax credits 0.20% (1.40%)
True-up and deferred adjustment 85.10% 0.00%
Change in valuation allowance (60.10%) 8.00%
Effective income tax rate 0.00% 0.00%