Debt Financing (Tables)

12 Months Ended

Dec. 31, 2019

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

The following table summarizes the debt obligations as of December 31, 2019:

Drawdown Date	Drawdown Amount		Principal Balance		Purchase Option Fee		Discount on Purchase Option Fee			Unamortized Discounts and Issuance Costs			Monthly Payment		Stated Interest Rate		Effective Interest Rate		Maturity Date
	(in thousands)
09/25/2018	$	5,000	$	2,928	$	600	$	(59	)	$	(357	)	$	160	9.43	%	26.28	%	10/01/2021
12/11/2018	2,800		1,866		336		(42		)	(139		)	90		9.68	%	19.58	%	01/01/2022
06/06/2019	2,300		1,889		276		(52		)	(167		)	74		9.93	%	19.77	%	07/01/2022
09/13/2019	2,300		2,060		276		(61		)	(200		)	74		9.93	%	19.93	%	10/01/2022
11/27/2019	1,600		1,510		192		(47		)	(160		)	52		9.93	%	20.20	%	12/01/2022
Total	$	14,000	$	10,253	$	1,680	$	(261	)	$	(1,023	)	$	450

The following table summarizes of the Company's build-to-suit obligation as of December 31, 2019 (in thousands):

Build-to-suit obligation principal amount	$	10,253
Build-to-suit obligation Purchase Option Fees at present value	1,419
Less: unamortized Purchase Option Fees	(768		)
unamortized fair value of free-standing warrants	(97		)
unamortized debt discount	(147		)
unamortized debt issuance costs	(11		)
Build-to-suit obligation, net of debt issuance costs and discount	$	10,649
Build-to-suit obligation, current portion	4,554
Build-to-suit obligation, long-term portion, net of debt issuance costs and discount	6,095
Build-to-suit obligation, net of debt issuance costs and discount	$	10,649

Schedule of Maturities of Long-term Debt

Future minimum payments on the Company’s build-to-suit obligation, including payment of principal and interest and Purchase Option Fees for each year ending December 31 were as follows:

Year	Principal		Interest		Purchase Option Fees
	(in thousands)
2020	$	4,554	$	843	$	—
2021	4,284		384		600
2022	1,415		65		1,080
Total	$	10,253	$	1,292	$	1,680