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Stockholders' Equity - Accounting for Stock-Based Compensation (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Stockholders’ Equity
Stock-based compensation	$ 400,000	$ 400,000	$ 1,321,200	$ 2,447,091
Compensation expenses capitalized	$ 0	$ 0	$ 0	$ 0
Employee stock options
Stockholders’ Equity
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			4 years
Term of award			P10Y	P10Y
Employee stock options \| Maximum
Stockholders’ Equity
Term of award			P10Y