Revenues and Trade Receivables, Net - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Revenues	$ 50,832	$ 45,849
United States
Disaggregation of Revenue [Line Items]
Revenues	42,860	40,956
Ex-United States
Disaggregation of Revenue [Line Items]
Revenues	$ 7,972	$ 4,893

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details