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Summary of Significant Accounting Policies - Schedule of Changes in Contract Assets and Liabilities (Details) - USD ($) | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Accounting Policies [Abstract] |  |
Unbilled Accounts receivables, balance at beginning of period | $ 523,522 | $ 23,371
Unbilled Accounts receivables, Addition from acquisition |  | 276,023
Unbilled Accounts receivables, revenue recognized in advance of billings | 466,310 | 24,568
Unbilled Accounts receivables, billings | (643,681) | (32,991)
Unbilled Accounts receivables, balance at end of period | 346,151 | 290,971
Deferred revenue, balance at beginning of period | 996,131 | 754,073
Deferred revenue, Addition from acquisition |  | 39,186
Deferred revenue, billings | 684,140 | 491,980
Deferred revenue, recognized revenue | (734,459) | (581,842)
Deferred revenue, balance at end of period | $ 945,812 | $ 703,397

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- Definition Amount of increase (decrease) in revenue recognized for cumulative catch-up adjustment from contract modification which increases (decreases) right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 + Details
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