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Comprehensive loss (Tables) | 12 Months Ended
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Dec. 31, 2021
Comprehensive loss |
Schedule of Accumulated Other Comprehensive Loss | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | ​ | ​ |  | Foreign Currency |  | Accumulated Other
​ | ​ | Pension Liability | ​ | Fair Value of | ​ | Translation | ​ | Comprehensive
​ | ​ | Adjustment | ​ | Derivatives | ​ | Adjustment | ​ | Loss
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance at January 1, 2021 | ​ | $ | (444) | ​ | ​ | - | ​ | $ | (494) | ​ | $ | (938)
Other comprehensive income (loss) before reclassifications, net of taxes | ​ |  | (457) | ​ |  | (458) | ​ |  | (487) | ​ |  | (1,402)
Total other comprehensive loss before reclassifications, net of taxes | ​ |  | (901) | ​ |  | (458) | ​ |  | (981) | ​ |  | (2,340)
Net amount reclassified to earnings | ​ |  | 43 | ​ |  | 105 | ​ |  | - | ​ |  | 148
Balance at December 31, 2021 | ​ | $ | (858) | ​ | $ | (353) | ​ | $ | (981) | ​ | $ | (2,192)
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | ​ | ​ |  | Foreign Currency |  | Accumulated Other
​ | ​ | Pension Liability | ​ | Fair Value of | ​ | Translation | ​ | Comprehensive
​ | ​ | Adjustment | ​ | Derivatives | ​ | Adjustment | ​ | Loss
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance at January 1, 2020 | ​ | $ | (53) | ​ | $ | 33 | ​ | $ | (900) | ​ | $ | (920)
Other comprehensive income (loss) before reclassifications, net of taxes | ​ |  | - | ​ |  | (106) | ​ |  | 406 | ​ |  | 300
Total other comprehensive loss before reclassifications, net of taxes | ​ |  | (53) | ​ |  | (73) | ​ |  | (494) | ​ |  | (620)
Net amount reclassified to earnings | ​ |  | (391) | ​ |  | 73 | ​ |  | - | ​ |  | (318)
Balance at December 31, 2020 | ​ | $ | (444) | ​ | $ | - | ​ | $ | (494) | ​ | $ | (938)

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