Quarterly report pursuant to Section 13 or 15(d)

Debt (Tables)

v3.21.2
Debt (Tables)
 9 Months Ended
Sep. 30, 2021
Debt Disclosure [Abstract]  
Summary of Debt Obligations
The following table sets forth our various debt obligations:

September 30, 2021 December 31, 2020
Series A Note (principal amount) $ —  $ 2,481 
Series B Note (principal amount) —  3,585 
Paycheck Protection Program Loan —  2,850 
Convertible notes 222  250 
Promissory notes 905  905 
Total debt $ 1,127  $ 10,071 
Debt discount - warrants (2020 Convertible Notes) —  (1,029)
Debt discount - issuance costs (2020 Convertible Notes) —  (650)
Less: current maturities of long-term debt (83) (4,435)
Less: related-party debt (195) (195)
Long-term debt $ 849  $ 3,762 
Summary of Calculated Aggregate Fair Values and Assumptions The following table sets forth the assumptions used to calculate the fair value of our warrant liability at the respective dates:
September 30, 2021 December 31, 2020
Strike price per share $ 2.25  $ 4.00 
Closing price per share $ 0.93  $ 1.26 
Term (years) 1.78 2.53
Volatility 142  % 146  %
Risk-free rate 0.17  % 0.17  %
Dividend Yield — —
Summary of Interest Expense
The following table sets forth interest expense for our various debt obligations included on the condensed consolidated statements of operations:
Three Months Ended September 30, Nine Months Ended September 30,
2021 2020 2021 2020
2020 Convertible Notes $ —  $ 279  $ 1,111  $ 279 
Accretion of debt discount - issuance costs — 185 1,741  370 
Accretion of debt discount - warrants — 805 1,029  805 
All other debt and financing obligations (7) 93 176  469 
Total $ (7) $ 1,362  $ 4,057  $ 1,923