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Commitments (Details 3) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Commitments    
Operating lease cost $ 171,530 $ 164,252
Finance lease cost:    
Amortization 5,786 5,786
Interest 119 159
Variable lease cost 85,265 82,885
Total lease cost $ 262,700 $ 253,082