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Balance Sheet Components - Summary of Platform Development Cost Activity (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020
Platform development beginning of period | $ 1,706,805 |  |
Stock-based compensation | 5,099,012 | $ 3,560,120 |
Platform development end of period | 1,804,584 |  | $ 1,706,805
Platform Development [Member] |  |  |
Platform development beginning of period | 16,027,428 | $ 10,678,692 | 10,678,692
Payroll-based costs capitalized during the period | 867,713 |  | 3,750,541
Total capitalized costs | 16,895,141 |  | 14,429,233
Stock-based compensation | 309,195 |  | 1,608,995
Dispositions |  |  | (10,800)
Platform development end of period | $ 17,204,336 |  | $ 16,027,428

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