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Other Expenses, Net (Details) - USD ($)
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Other Income and Expenses [Abstract]    
Interest expense [1] $ 79,635 $ 181,900
Interest rate swap termination fee 165,050
(Gain) loss on disposal of fixed assets (10,000) 3,266
Interest income (2,957) (16,440)
Other (income) expenses, net $ 66,678 $ 333,776
[1] Interest expense during 2020 included a $94,782 write-off of debt issuance costs associated with debt that we repaid during the first quarter of 2020. Interest expense included $1,960 and $3,166 in amortization of debt issuance costs during the three- month periods ended March 31, 2021 and 2020, respectively.