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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

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