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Notes Payable (Details) - Schedule of long-term debt, net of original issue discount and unamortized debt issuance costs - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020
Term Loans: |  |
Total term loans | $ 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
Maryland Department of Housing & Community Development [Member] |  |
Term Loans: |  |
Interest Rate | 8.00% |
Total term loans | $ 819 | 1,080
Advance Cecil, Inc. [Member] |  |
Term Loans: |  |
Interest Rate | 8.00% |
Total term loans | $ 164 | 216
Paycheck Protection Program [Member] |  |
Term Loans: |  |
Interest Rate | 1.00% |
Total term loans |  | 647
Avenue Venture Opportunities Fund, L.P. [Member] |  |
Term Loans: |  |
Interest Rate | 9.85% |
Total term loans | $ 20,000 |
Other [Member] |  |
Term Loans: |  |
Interest Rate | 0.00% |
Total term loans |  | $ 6

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