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Significant Customers, Concentrations of Credit Risk and Geographic Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) segment customer	Dec. 31, 2020 USD ($) customer
SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION
Number of operating segments | segment	1
Revenue, net	$ 7,478	$ 6,888
Allowance for doubtful accounts	$ 0	$ 0
Net revenue | Customer Concentration Risk | Customer A
SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION
Concentration risk (as a percent)	17.00%	17.00%
Net revenue | Customer Concentration Risk | Customer B
SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION
Concentration risk (as a percent)	15.00%	16.00%
Net revenue | Customer Concentration Risk | Customer C
SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION
Concentration risk (as a percent)	15.00%	12.00%
Net revenue | Geographic Concentration Risk
SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION
Revenue, net	$ 7,478	$ 6,888
Net revenue | Geographic Concentration Risk | United states
SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION
Revenue, net	2,185	2,832
Net revenue | Geographic Concentration Risk | Asia and Middle East
SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION
Revenue, net	4,724	3,575
Net revenue | Geographic Concentration Risk | Europe and other
SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION
Revenue, net	$ 569	$ 481
Accounts receivable | Credit Concentration Risk
SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION
Number of customers | customer	3	2
Accounts receivable | Credit Concentration Risk | Customer One
SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION
Concentration risk (as a percent)	39.00%
Accounts receivable | Credit Concentration Risk | Customer Two
SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION
Concentration risk (as a percent)	18.00%
Accounts receivable | Credit Concentration Risk | Customer Three
SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION
Concentration risk (as a percent)	12.00%
Accounts receivable | Credit Concentration Risk | Customer Four
SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION
Concentration risk (as a percent)		47.00%
Accounts receivable | Credit Concentration Risk | Customer Five
SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION
Concentration risk (as a percent)		22.00%
Assets | Geographic Concentration Risk
SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION
Total long-lived assets	$ 712	$ 1,526
Assets | Geographic Concentration Risk | United states
SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION
Total long-lived assets	536	1,194
Assets | Geographic Concentration Risk | Asia
SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION
Total long-lived assets	$ 176	$ 332

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Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

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