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Significant Customers, Concentrations of Credit Risk, and Geographic Information (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) customer	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) customer
Significant Customers, Concentrations of Credit Risk, and Geographic Information
Revenue, net	$ 3,075,000	$ 1,851,000	$ 10,402,000	$ 5,882,000
Allowance for doubtful accounts	0		0		$ 0
Total long-lived assets	5,364,000		5,364,000		1,279,000
Geographic Concentration Risk | United States
Significant Customers, Concentrations of Credit Risk, and Geographic Information
Revenue, net	1,257,000	661,000	5,357,000	2,657,000
Total long-lived assets	717,000		717,000		935,000
Geographic Concentration Risk | Asia and Middle East
Significant Customers, Concentrations of Credit Risk, and Geographic Information
Revenue, net	816,000	1,069,000	2,770,000	2,849,000
Geographic Concentration Risk | Europe
Significant Customers, Concentrations of Credit Risk, and Geographic Information
Total long-lived assets	4,358,000		4,358,000
Geographic Concentration Risk | Asia
Significant Customers, Concentrations of Credit Risk, and Geographic Information
Total long-lived assets	289,000		289,000		$ 344,000
Geographic Concentration Risk | Europe and other
Significant Customers, Concentrations of Credit Risk, and Geographic Information
Revenue, net	$ 1,002,000	$ 121,000	$ 2,275,000	$ 376,000
Net revenue | Customer Concentration Risk | Customer A
Significant Customers, Concentrations of Credit Risk, and Geographic Information
Concentration risk (as a percent)	11.00%	20.00%	22.00%	27.00%
Net revenue | Customer Concentration Risk | Customer B
Significant Customers, Concentrations of Credit Risk, and Geographic Information
Concentration risk (as a percent)	19.00%		11.00%
Net revenue | Customer Concentration Risk | Customer C
Significant Customers, Concentrations of Credit Risk, and Geographic Information
Concentration risk (as a percent)	11.00%	15.00%		18.00%
Accounts receivable | Credit Concentration Risk
Significant Customers, Concentrations of Credit Risk, and Geographic Information
Number of customers | customer			2		2
Accounts receivable | Credit Concentration Risk | Customer One
Significant Customers, Concentrations of Credit Risk, and Geographic Information
Concentration risk (as a percent)			26.00%		20.00%
Accounts receivable | Credit Concentration Risk | Customer Two
Significant Customers, Concentrations of Credit Risk, and Geographic Information
Concentration risk (as a percent)			17.00%		13.00%

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