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Financial Risk Management (Tables) | 12 Months Ended
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Dec. 31, 2021
Financial Risk Management |
Schedule of sales percentage from significant customer | The Company depends on two customers for majority of its revenues. The Company’s sales to these two customers as a percentage of revenues are as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31, |
​ |  | 2019 | ​ | 2020 |  | 2021 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Customer A and its affiliates |  | 29.50% | ​ | 32.60% | ​ | 32.10% | ​
Customer C |  | 5.60% | ​ | 12.70% | ​ | 19.10% | ​
Schedule of accounts receivable percentage from significant customers | The percentage of the Company’s accounts receivable accounted by customers, those representing more than 10% of total accounts receivable balance, is summarized as follows:
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, | ​ | December 31, |
​ |  | 2020 |  | 2021 |
​ | ​ | ​ | ​ | ​ |
Customer A and its affiliates |  | 36.3% | ​ | 39.0% | ​
Customer C |  | 13.6% | ​ | 12.1% | ​

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