NOTES PAYABLE (Tables)

12 Months Ended

Dec. 31, 2019

Debt Disclosure [Abstract]

Composition of Notes Payable

Amounts outstanding under the 2017 SVB Loan Agreement were as follows:

	December 31,
	2019			2018
	(in thousands)
Principal amount outstanding	$	7,667		$	10,000
Unamortized debt discount	(32		)	(69		)
Accreted final payment fee	669			367
Total note payable	8,304			10,298
Less: current maturities	(3,976		)	(2,294		)
Note payable, net of current portion	$	4,328		$	8,004

Future Annual Minimum Principal Payments of Notes Payable

Future annual minimum principal payments under the 2017 SVB Loan Agreement as of December 31, 2019 for the respective calendar years are as follows (in thousands):

2020	$	4,000
2021	3,667
Total	$	7,667