Income Taxes - Reconciliation of the statutory federal income tax expense (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Effective Tax Rate    
Income tax expense at the federal statutory rate 21.00% 21.00%
State income taxes - net of federal income tax benefits (5.97%) 2.96%
Permanent Differences 0.25% 1.08%
Permanent Differences - Related to Convertible Debt 0.31% (5.04%)
Permanent Differences - Fair Value Adjustments (56.44%) 0.00%
Prior year provision to return (0.03%) (0.03%)
Net change in valuation allowance 40.73% (20.81%)
Other 0.01% 0.00%
Total income tax expense (benefit) (0.14%) (0.84%)