Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Reconciliation Statutory Federal Income Tax Provision to Actual Income Tax Benefit (Details)

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Income Taxes - Schedule of Reconciliation Statutory Federal Income Tax Provision to Actual Income Tax Benefit (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Income Tax Disclosure [Abstract]    
Federal statutory rate (21.00%) (21.00%)
State taxes, net of federal benefit (4.40%) (7.00%)
Return to provision 0.00% (11.20%)
Equity related expenses (2.60%) (5.70%)
Change in valuation allowance 28.00% 44.90%
Total income tax expense 0.00% 0.00%
Pre-tax book income at statutory rate $ (1,476) $ (1,007)
State taxes, net of federal benefit (312) (336)
Return to provision 1 (538)
Equity related expenses (182) (274)
Change in valuation allowance 1,970 2,153
Other (1) 2
Total income tax expense