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v3.22.2.2

Segment reporting and concentrations - Additional information (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2022 USD ($) customer | Sep. 30, 2021 customer | Sep. 30, 2022 USD ($) customer segment | Sep. 30, 2021 customer | Dec. 31, 2021 USD ($) customer
Segment reporting information |  |  |  |  |
Number of reportable segments | segment |  |  | 3 |  |
Right-of-use-asset, net | $ | $ 4,199 |  | $ 4,199 |  | $ 5,621
Classification of segment assets | $ | $ 47,809 |  | $ 47,809 |  | $ 59,217
Foreign Customer | Sales Revenue, Net | Customer Concentration Risk | Non-US |  |  |  |  |
Segment reporting information |  |  |  |  |
Concentration risk, percentage | 35.00% | 46.00% | 37.00% | 47.00% |
Foreign Customer | Accounts receivable | Customer Concentration Risk |  |  |  |  |
Segment reporting information |  |  |  |  |
Concentration risk, percentage |  |  | 47.00% |  | 37.00%
One Client | Sales Revenue, Net | Customer Concentration Risk | United States |  |  |  |  |
Segment reporting information |  |  |  |  |
Number of clients |  |  | 1 | 1 |
Concentration risk, percentage |  |  | 13.00% | 11.00% |
One Client | Sales Revenue, Net | Customer Concentration Risk | Non-US |  |  |  |  |
Segment reporting information |  |  |  |  |
Number of clients |  | 1 |  |  |
Concentration risk, percentage |  | 10.00% |  |  |
One Client | Accounts receivable | Customer Concentration Risk |  |  |  |  |
Segment reporting information |  |  |  |  |
Number of clients |  |  |  |  | 1
Concentration risk, percentage |  |  |  |  | 19.00%
Another Client | Accounts receivable | Customer Concentration Risk |  |  |  |  |
Segment reporting information |  |  |  |  |
Number of clients |  |  | 2 |  |
Concentration risk, percentage |  |  | 24.00% |  |
Client | Sales Revenue, Net | Customer Concentration Risk | United States |  |  |  |  |
Segment reporting information |  |  |  |  |
Number of clients | 0 |  |  |  |
Concentration risk, percentage | 10.00% |  |  |  |
Client | Sales Revenue, Net | Customer Concentration Risk | Non-US |  |  |  |  |
Segment reporting information |  |  |  |  |
Number of clients |  |  | 0 | 0 |
Client | Accounts receivable | Customer Concentration Risk |  |  |  |  |
Segment reporting information |  |  |  |  |
Number of clients |  |  | 0 |  | 0
Concentration risk, percentage |  |  | 10.00% |  | 10.00%

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