Balance Sheet Components - Summary of Platform Development Cost Activity (Details) - USD ($)	3 Months Ended	12 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Stock-based compensation	$ 3,560,120	$ 1,319,627
Platform Development [Member]
Platform development beginning of period	10,678,692	$ 6,833,900	$ 6,833,900
Payroll-based costs capitalized during the period	853,926		2,537,402
Total capitalized costs	11,532,618		9,371,302
Stock-based compensation	370,052		1,307,390
Platform development end of period	$ 11,902,670		$ 10,678,692

Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer.

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Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount of noncash expense for share-based payment arrangement.

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