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