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Research and Development (Tables) | 6 Months Ended | 12 Months Ended
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Jun. 30, 2022 | Dec. 31, 2021
Research and Development Expense [Abstract] |  |
Research And Development | The R&D expenses are comprised of the following items:
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Outsourced service (i) |  | $ | 8,226,551 |  |  | $ | 374,634 |  |  | $ | 16,372,414 |  |  | $ | 833,051 |
Employees’ compensation |  |  | 1,553,645 |  |  |  | 1,415,078 |  |  |  | 2,310,013 |  |  |  | 2,777,355 |
Other expenses |  |  | 51,934 |  |  |  | 127,550 |  |  |  | 243,461 |  |  |  | 176,616 |
Travel & entertainment |  |  | 3,606 |  |  |  | 21,550 |  |  |  | 24,535 |  |  |  | 43,441 |
Total |  | $ | 9,835,736 |  |  | $ | 1,938,812 |  |  | $ | 18,950,423 |  |  | $ | 3,830,463 |
(i) | Out of $16,372,414, for the six months ended June 30, 2022, and $8,226,551, for the three months ended June 30, 2022, $15,665,298, was charged under the MSA contract for the six months ended June 30, 2022, and $8,329,134 was charged for the three months ended June 30,2022 (refer to Note 4). The amount charged under the MSA for the three-months period ended June 30, 2022 is higher than the Outsourced service expense for the same period due to certain reclassifications between R&D expenses and Selling expenses. See section Segments in Note 2 for more details.
| The R&D expenses are comprised of the following items:
|  | Year Ended December 31, |
|  | 2021 |  |  | 2020 |  |  | 2019 |
Employees’ compensation |  | $ | 7,278,999 |  |  | $ | 4,833,957 |  |  | $ | 3,083,337 |
Outsourced service |  |  | 5,100,980 |  |  |  | 1,241,479 |  |  |  | 2,372,248 |
Test devices and mock-ups |  |  | 524,062 |  |  |  | 2,049,390 |  |  |  | 14,598 |
Other expenses |  |  | 265,243 |  |  |  | 193,250 |  |  |  | 292,688 |
Travel & entertainment |  |  | 110,496 |  |  |  | 39,967 |  |  |  | 184,423 |
Total |  | $ | 13,279,780 |  |  | $ | 8,358,043 |  |  | $ | 5,947,294 |

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