Share-Based Compensation - Warrants (Details) - $ / shares	Jun. 30, 2021	Dec. 31, 2020
Class of Warrant or Right [Line Items]
Number of Warrants Outstanding and Exercisable	1,100,000	900,000
Exercise price of warrants (in dollars per share)	$ 4.00
Service providers
Class of Warrant or Right [Line Items]
Number of Warrants Outstanding and Exercisable	200,000	200,000
Exercise price of warrants (in dollars per share)	$ 5.00
Service providers
Class of Warrant or Right [Line Items]
Number of Warrants Outstanding and Exercisable	700,000	700,000
Exercise price of warrants (in dollars per share)	$ 2.50
Service provider
Class of Warrant or Right [Line Items]
Number of Warrants Outstanding and Exercisable	100,000	0
Exercise price of warrants (in dollars per share)	$ 7.50
Service provider
Class of Warrant or Right [Line Items]
Number of Warrants Outstanding and Exercisable	100,000	0
Exercise price of warrants (in dollars per share)	$ 9.00