Amount of accumulated undistributed earnings (deficit).

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Name:	us-gaap_RetainedEarningsAccumulatedDeficit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Basis of Presentation and Summary of Significant Accounting Policies - Accounts Receivable and Geographic information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2023	Dec. 31, 2022
Concentration Risk [Line Items]
Payment terms			30 days
Accumulated deficit	$ (151,522,000)		$ (151,522,000)			$ (149,020,000)
Accounts receivable, allowance for credit loss	$ 3,000		$ 3,000		$ 12,000
Countries outside of the United States \| Revenue \| Geographic concentration risk
Concentration Risk [Line Items]
Concentration risk (less than for geographic concentration risk)	1.00%	1.00%	1.00%	1.00%
Cumulative Effect, Period of Adoption, Adjustment
Concentration Risk [Line Items]
Accumulated deficit						$ 2,600