Stock-Based Compensation - Service Based Stock Options - Others (Details) - USD ($)	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expenses	$ 934,847	$ 1,517,302
Stock option awards - Service based awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeited (in shares)	457,334
Stock based compensation expenses	$ 439,625	$ 652,024
Unrecognized stock-based compensation expenses	$ 1,700,000
Unrecognized stock-based compensation expense, weighted average remaining term (in years)	1 year 2 months 12 days
Employee stock options \| Stock option awards - Service based awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	51,148

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost to be recognized for option under share-based payment arrangement.

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Net number of share options (or share units) granted during the period.

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