Term Notes (Tables)

9 Months Ended

Sep. 30, 2020

Debt Disclosure [Abstract]

Schedule of Long-term Debt and Net Discount or Premium Balance

Long-term debt and net discount or premium balances are as follows:

	September 30,			December 31,
	2020			2019
	(in thousands)
Principal amount of term note	$	16,500		$	13,334
Net (discount) premium associated with accretion of final payment,    issuance of common stock warrants, and other debt issuance costs		(49	)		485
Term note, current and noncurrent		16,451			13,819
Less term note, current portion		(1,650	)		(6,667	)
Term note, noncurrent portion	$	14,801		$	7,152

Schedule of Future Minimum Payments for Principal and Interest

Future minimum payments of principal and estimated payments of interest on the Company’s outstanding variable rate borrowings as of September 30, 2020 are as follows:

Year ending December 31:	(in thousands)
2020 (remainder)	$	146
2021		3,861
2022		6,961
2023		8,294
Total future payments		19,262
Less amounts representing interest		(1,194	)
Less final payment		(1,568	)
Total principal amount of term note payments	$	16,500