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Debt - Schedule of Debt (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Current liabilities: |  |
Term loans | $ 0 | $ 2,800
Unamortized debt issuance costs | 0 | (25)
Unamortized debt discount | 0 | (1)
Loans payable, net of issuance costs and discount | 0 | 2,774
Non-current liabilities: |  |
Term loans | 0 | 1,400
Accrued end of term fees | 0 | 374
Unamortized debt issuance costs | 0 | (4)
Loans payable, net of issuance costs and discount | 0 | 1,770
Total loans payable, net of issuance costs and discount | $ 0 | $ 4,544

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