Long-term debt (Tables)

9 Months Ended

Sep. 30, 2022

Long-term debt

Summary of the Company's indebtedness

	September 30, 2022		December 31, 2021
Principal	$	10,000	$	10,000
Plus: End of term fee		395		395
Less: Debt discount attributable to warrants, net of accretion		(12)		(25)
Less: Unamortized deferred financing cost and end of term fee, net of accretion		(211)		(428)
Long-term debt, net	$	10,172	$	9,942

Schedule of interest expense of the Loan Agreement

	For the Three		For the Three		For the Nine		For the Nine
	Months Ended		Months Ended		Months Ended		Months Ended
	September 30, 2022		September 30, 2021		September 30, 2022		September 30, 2021
Interest expense	$	296	$	245	$	787	$	725
Amortization of debt issuance costs, including end of term fee accretion		77		77		230		229
	$	373	$	322	$	1,017	$	954

Schedule of future principal payments due

Future principal payments due (including the end of term fee) under the Loan Agreement are as follows (in thousands):

	Principal Payments
2023	$	6,544
2024		3,851
Total future payments	$	10,395