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Summary of Platform Development Cost Activity (Details) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020 | Dec. 31, 2019
Property, Plant and Equipment [Line Items] |  |  |  |
Platform development beginning of year | $ 1,706,805 | $ 977,697 | $ 977,697 |
Stock-based compensation | 21,688,226 | 11,185,953 | 14,641,181 | $ 10,364,787
Dispositions | (862,442) | (105,123) |  |
Platform development end of year | 1,268,903 |  | 1,706,805 | 977,697
Platform Development [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Platform development beginning of year | 16,027,428 | $ 10,678,692 | 10,678,692 | 6,833,900
Payroll-based costs capitalized during the year | 3,016,924 |  | 3,750,541 | 2,537,402
Total capitalized costs | 19,044,352 |  | 14,429,233 | 9,371,302
Stock-based compensation | 1,347,624 |  | 1,608,995 | 1,307,390
Dispositions | (894,456) |  | (10,800) |
Platform development end of year | $ 19,497,520 |  | 16,027,428 | 10,678,692
Dispositions during the year |  |  | $ (10,800) |

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