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Long-Term Debt (Tables)
9 Months Ended
Sep. 30, 2019
Debt Disclosure [Abstract]  
Schedule of Long-Term Debt

Long-term debt consists of the following (in thousands):

 

 

 

September 30,

2019

 

Long-term debt

 

$

25,000

 

Unamortized debt discount

 

 

(2,389

)

Long-term debt, net of debt discount

 

$

22,611

 

Schedule of Future Minimum Principal and Interest Payments Under Term Loans

Future minimum principal and interest payments under the Term Loans, including the final payment fee, as of September 30, 2019 are as follows (in thousands):

 

Year ending December 31:

 

 

 

 

2019

 

$

458

 

2020

 

 

1,843

 

2021

 

 

6,609

 

2022

 

 

9,533

 

2023

 

 

8,920

 

2024

 

 

5,599

 

Total principal and interest payments

 

 

32,962

 

Less interest and final payment fee

 

 

(7,962

)

Long-term debt

 

$

25,000