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Financial Assets at Amortized Cost | 12 Months Ended
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Dec. 31, 2021
Financial Assets at Amortized Cost |
Financial Assets at Amortized Cost | Note 7. Financial Assets at Amortized Cost ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, |  | December 31, | ​
​ |  | 2020 |  | 2021 |
​ | ​ | ​ | (in thousands) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
Time deposit with original maturities more than three months | ​ | $ | 8,682 | ​ | 26,013 | ​
​ The financial assets at amortized cost are in China Yuan (CNY) and US dollar denominated time deposits with original maturities of more than three months and the expected holding period as of December 31, 2020 and 2021 is due in one year or less. As of December 31, 2020 and 2021, no financial assets at amortized cost were pledged with banks as collaterals.

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