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Accounts Receivable - Schedule of Accounts Receivable, Net (Details) - USD ($) | Sep. 30, 2020 | Dec. 31, 2019
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Accounts Notes And Loans Receivable [Line Items] |  |
Accounts receivable gross | $ 9,769,836 | $ 11,681,157
Less: allowance for doubtful accounts | (25,665) | (14,000)
Accounts receivable, total | 9,744,171 | 11,667,157
Accounts Receivable |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Accounts receivable gross | 9,769,730 | 11,655,725
Unbilled Receivables |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Accounts receivable gross | $ 106 | $ 25,432

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