Debt (Tables)

3 Months Ended

Mar. 31, 2022

Debt Disclosure [Abstract]

Summary of Interest Expense

The following table sets forth interest expense for our various debt obligations included on the condensed consolidated statements of operations and comprehensive loss:

	Three Months Ended March 31,
	2022		2021
2021 Promissory Note	$	178	$	—
2020 Convertible Notes	—		452
Accretion of debt discount - issuance costs	155		620
Accretion of debt discount - warrants	—		1,029
All other debt and financing obligations	48		118
Total	$	381	$	2,219