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Deferred Revenues (Tables) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 | Dec. 31, 2021
Detailed Information About Deferred Revenue [Abstract] |  |
Summary of detailed information about deferred revenue |
|  | March 31, 2022 |  |  | December 31, 2021 |
Balance, January 1 |  | $ | 84,614 |  |  | $ | 35,409 |
Cash received in advance of revenue recognition |  |  | 80,302 |  |  |  | 167,956 |
Revenue subsequently recognized |  |  | (54,430 | ) |  |  | (118,438 | )
Currency translation effects |  |  | (1,269 | ) |  |  | (313 | )
Closing balance |  | $ | 109,217 |  |  | $ | 84,614 |
December 31, |  | 2021 |  |  | 2020 |
Balance, January 1 |  | $ | 35,409 |  |  | $ | 89,409 |
Cash received in advance of revenue recognition |  |  | 167,956 |  |  |  | 247,100 |
Revenue subsequently recognized |  |  | (118,438 | ) |  |  | (306,334 | )
Currency translation effects |  |  | (313 | ) |  |  | 5,234 |
|  | $ | 84,614 |  |  | $ | 35,409 |

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