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Commitments and Contingencies (Details)	1 Months Ended				3 Months Ended		36 Months Ended
	Mar. 31, 2024 USD ($) ft²	Jun. 30, 2023 USD ($) ft²	Feb. 28, 2023 USD ($)	May 31, 2022 USD ($)	Mar. 31, 2024 USD ($) ft²	Mar. 31, 2023 USD ($)	May 31, 2023 USD ($) ft²	Dec. 31, 2023 USD ($)
Commitments and Contingencies
Lease liability	$ 112,000				$ 112,000			$ 126,000
Lease liabilities, long term	2,000				2,000			33,000
ROU asset	$ 99,000				$ 99,000			$ 143,000
Weighted-average remaining lease term	6 months				6 months
Operating lease costs					$ 124,000	$ 119,000
Period of warranty from date of shipment					1 year
Extended warranty minimum period					1 year
Chief Executive Officer
Commitments and Contingencies
Period for severance payment					12 months
JAPAN
Commitments and Contingencies
Area of sublease space | ft²	500				500
Sublease rent per month					$ 1,000
Singapore
Commitments and Contingencies
Area of sublease space | ft²	275				275
Sublease rent per month					$ 1,000
Hong Kong
Commitments and Contingencies
Area of sublease space | ft²	3,000				3,000
Sublease rent per month					$ 2,000
Cost of revenue
Commitments and Contingencies
Operating lease costs					67,000	41,000
Operating expenses
Commitments and Contingencies
Operating lease costs					$ 57,000	$ 78,000
Sublease of space located in Irvine, California
Commitments and Contingencies
Area of sublease space | ft²	9,800				9,800
Sublease rent per month					$ 5,000
Space located in Irvine, California for executive offices, sales, finance and administration
Commitments and Contingencies
Area of sublease space | ft²							4,351
Space located in Irvine, California for executive offices, sales, finance and administration | Sublease of space located in Irvine, California
Commitments and Contingencies
Area of sublease space | ft²		1,560
Sublease rent per month	$ 4,000	$ 4,000					$ 6,000
Shenzhen, China manufacturing facility
Commitments and Contingencies
Area of sublease space | ft²	14,476				14,476
Sublease rent per month				$ 8,000
Newark, California manufacturing facility
Commitments and Contingencies
Area of sublease space | ft²	10,635				10,635
Sublease rent per month			$ 18,000
Fremont, California Facility
Commitments and Contingencies
New lease | ft²	5,183				5,183
Lease period	5 years 3 months 19 days				5 years 3 months 19 days
Lease rent per month	$ 10,625
Annual lease amount	3.50%

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