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Notes Payable (Tables) | 9 Months Ended
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Sep. 30, 2021
Debt Disclosure [Abstract] |
Schedule of long-term debt, net of original issue discount and unamortized debt issuance costs |
|  | Interest |  |  | September 30, |  |  | December 31, |
(in thousands) |  | Rate |  |  | 2021 |  |  | 2020 |
Term Loans: |  |  |  |  |  |  |  |  |
Maryland Department of Housing & Community Development |  |  | 8.00 | % |  | $ | 819 |  |  | $ | 1,080 |
Advance Cecil, Inc. |  |  | 8.00 | % |  |  | 164 |  |  |  | 216 |
Paycheck Protection Program |  |  | 1.00 | % |  |  | - |  |  |  | 647 |
Avenue Venture Opportunities Fund, L.P. |  |  | 9.85 | % |  |  | 20,000 |  |  |  | - |
Other |  |  | 0.00 | % |  |  | - |  |  |  | 6 |
|  |  |  |  |  |  | 20,983 |  |  |  | 1,949 |
Unamortized debt issuance costs and original issue discounts |  |  |  |  |  |  | (1,811 | ) |  |  | - |
Less convertible notes payable, net of unamortized debt discount and issuance costs (see Note 11) |  |  |  |  |  |  | (4,559 | ) |  |  | - |
Total notes payable |  |  |  |  |  | $ | 14,613 |  |  |  | 1,949 |
Schedule of future payments, net of unamortized debt discounts |
(in thousands) |  | September 30, 2021 |
2021 (remainder) |  | $ | - |
2022 |  |  | - |
2023 |  |  | 6,667 |
2024 |  |  | 13,333 |
2025 |  |  | - |
2026 |  |  | - |
Thereafter |  |  | - |
Subtotal of future principal payments |  | $ | 20,000 |
Unamortized debt discount associated with issuance date warrant fair value and financing costs |  |  | (1,811 | )
Total |  | $ | 18,189 |

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