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Supplemental Consolidated Financial Statement Information (Tables) | 12 Months Ended
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Dec. 31, 2022
Supplemental Consolidated Financial Statement Information |
Summary of prepaid expenses and other current assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31,
​ |  | 2022 |  | 2021
Contract assets | ​ | $ | 5,433 | ​ | $ | 972
Prepaid expenses | ​ | ​ | 2,252 | ​ | ​ | 1,101
Other assets | ​ |  | 1,191 | ​ |  | 1,240
Other current assets | ​ | $ | 8,876 | ​ | $ | 3,313
Schedule of operating revenues disaggregated by geographic region | The following table presents the Company’s operating revenues disaggregated by geographic region: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ | ​ | ​ | 2022 | ​ | 2021
Operating Revenues | ​ | ​ | ​ | ​ | ​ | ​
United States |  | $ | 22,202 |  | $ | 17,772
Canada |  | ​ | 15,278 |  | ​ | 6,923
Total | ​ | $ | 37,480 | ​ | $ | 24,695

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