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Leases (Schedule of Supplemental Cash Flow Information) (Details) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Cash used in operating activities    
Operating leases $ 348,038 $ 214,336
Finance leases 6,860 18,470
Cash used in financing activities    
Finance leases 100,466 162,453
ROU assets obtained in exchange for lease obligations:    
Operating leases $ 748,294