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Commitments and Contingencies - Lease cost (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Lease costs:    
Operating lease cost $ 160,872 $ 66,652
Short-term lease cost 258,357 252,796
Variable lease cost   14,700
Total lease costs 419,229 334,148
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash flows from operating leases 111,527 58,666
Operating cash flows from short-term leases 236,700 252,796
Total lease Payment $ 348,227 $ 311,462
Weighted-average remaining lease term - operating leases 9 years 7 months 13 days 5 years 3 months 29 days
Weighted-average discount rate - operating leases 9.70% 6.00%