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Commitments and contingencies, Operating Leases (Details) | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Aug. 31, 2021 EUR (€) ft² | Mar. 31, 2021 USD ($) | Mar. 08, 2021 USD ($) ft² | Feb. 04, 2021 ft²
Operating Leases [Abstract] |  |  |  |  |  |
Area of leased space | ft² |  |  | 1,017 |  | 21,401 | 6,041
Annual rent |  |  |  | $ 456,095 | $ 1,498,070 |
Lease contract term |  |  |  |  | 8 years 5 months | 5 years
Security deposit |  |  |  |  | $ 750,000 |
Monthly basic rate plus VAT | € |  |  | € 7,768 |  |  |
Term of option to extend lease |  |  |  |  | 5 years |
Operating lease expenses | $ 761,188 | $ 26,672 |  |  |  |
Future Lease Payments [Abstract] |  |  |  |  |  |
2022 | 1,458,088 |  |  |  |  |
2023 | 2,299,875 |  |  |  |  |
2024 | 2,283,363 |  |  |  |  |
2025 | 2,319,447 |  |  |  |  |
2026 | 1,942,341 |  |  |  |  |
Thereafter | 6,350,640 |  |  |  |  |
Total | $ 16,653,754 |  |  |  |  |
Maximum [Member] |  |  |  |  |  |
Operating Leases [Abstract] |  |  |  |  |  |
Security deposit | € |  |  | € 30,000 |  |  |
Other Non-current Assets [Member] |  |  |  |  |  |
Operating Leases [Abstract] |  |  |  |  |  |
Security deposit |  |  |  | $ 114,023 |  |

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- Definition Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123386454&loc=d3e45280-112737 + Details
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