Nature of Operations and Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Revenue Disaggregated by Geographic Market

The following table provides additional information pertaining to net revenue disaggregated by geographic market for the three and six months ended June 30, 2020 and 2019 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
United States	$	14,648	$	—	$	39,694	$	—
International markets	565		1,488		1,815		2,565
Total net revenue	$	15,213	$	1,488	$	41,509	$	2,565

Schedule of Fair Value Hierarchy for Assets Measured on Recurring Basis

The following table presents the fair value hierarchy for those assets measured at fair value on a recurring basis as of June 30, 2020 and December 31, 2019 (in thousands):

	Fair Value Measurements at June 30, 2020
Assets:	Level 1		Level 2		Level 3		Total
Commercial paper	$	—	$	—	$	—	$	—
Corporate notes	—		—		—		—
U.S. government and agency securities	—		—		—		—
	$	—	$	—	$	—	$	—

	Fair Value Measurements at December 31, 2019
Assets:	Level 1		Level 2		Level 3		Total
Commercial paper	$	—	$	7,195	$	—	$	7,195
Corporate notes	2,018		—		—		2,018
U.S. government and agency securities	3,379		—		—		3,379
	$	5,397	$	7,195	$	—	$	12,592