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v3.22.4

Segment reporting and concentrations - Additional information (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 USD ($) customer client segment | Dec. 31, 2021 USD ($)
Segment reporting information |  |
Number of reportable segments | segment | 3 |
Right-of-use-asset, net | $ | $ 4,309 | $ 5,621
Classification of segment assets | $ | $ 48,042 | $ 59,217
Sales revenue,net | Customer concentration risk | Non-US |  |
Segment reporting information |  |
Concentration risk, percentage | 38.00% | 45.00%
Foreign customer | Accounts receivable | Customer concentration risk |  |
Segment reporting information |  |
Concentration risk, percentage | 44.00% | 37.00%
One client | Sales revenue,net | Customer concentration risk |  |
Segment reporting information |  |
Number of clients | 1 |
Concentration risk, percentage | 11.00% |
One client | Accounts receivable | Customer concentration risk |  |
Segment reporting information |  |
Concentration risk, percentage |  | 19.00%
Another client | Sales revenue,net | Customer concentration risk |  |
Segment reporting information |  |
Concentration risk, percentage |  | 11.00%
Three clients | Sales revenue,net | Customer concentration risk |  |
Segment reporting information |  |
Number of clients | 0 |
Three clients | Accounts receivable | Customer concentration risk |  |
Segment reporting information |  |
Number of clients | client | 1 |
Four clients | Accounts receivable | Customer concentration risk |  |
Segment reporting information |  |
Concentration risk, percentage | 45.00% |
Client | Accounts receivable | Customer concentration risk |  |
Segment reporting information |  |
Number of clients | 0 |
Client | Minimum | Sales revenue,net | Customer concentration risk |  |
Segment reporting information |  |
Concentration risk, percentage | 10.00% |
Client | Minimum | Accounts receivable | Customer concentration risk |  |
Segment reporting information |  |
Concentration risk, percentage | 10.00% |

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