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Commitments (Details 4) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2021
Cash paid for amounts included in operating and finance leases:    
Operating cash outflow from operating leases $ 66,872 $ 135,446
Operating cash outflow from finance leases 21 45
Financing cash outflow from finance leases 1,451 2,900
Total cash paid for amounts included in operating and finance leases $ 68,344 $ 138,391