Other Income (Expense), Net

6 Months Ended

Jun. 30, 2021

Other Income And Expenses [Abstract]

Other Income (Expense), Net

6. Other Income (Expense), Net

Other income (expense), net consisted of the following (in thousands):

	Three Months Ended June 30,					Six Months Ended June 30,
	2021		2020			2021		2020
Interest and other income	$	74	$	4		$	158	$	10
Interest expense		—		(148	)		—		(366	)
Change in fair value of derivative liability		—		313			—		(132	)
Change in fair value of grant liability		—		(108	)		—		(11	)
Gain on extinguishment of convertible notes		—		199			—		199
Total other income (expense), net	$	74	$	260		$	158	$	(300	)