Share Based Compensation - Options Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Other Disclosures
Aggregate Intrinsic Value			$ 4,213,950
Weighted Average Remaining Contractual Term (Years)		7 years 4 months 24 days
Stock Options
Share Based Compensation
Grant date fair value	$ 8.67
Expected dividend yield	0.00%
Volatility rate	92.48%
Risk-free interest rate	1.68%
Expected term	4 years 4 months 17 days
Shares
Outstanding at the beginning of the year (in shares)	523,105	681,869
Terminated (in shares)		(9,913)
Exercised (in shares)	(7,193)	(148,851)
Outstanding at the end of the year (in shares)	515,912	523,105	681,869
Weighted Average Exercise Price
Outstanding at the beginning of the year (in dollars per share)	$ 12.77	$ 12.77
Terminated (in dollars per share)		12.77
Exercised (in dollars per share)	12.77	12.77
Outstanding at the end of the year (in dollars per share)	$ 12.77	$ 12.77	$ 12.77
Other Disclosures
Aggregate Intrinsic Value	$ 4,756,709	$ 7,762,878
Weighted Average Remaining Contractual Term (Years)	5 years 7 months 6 days
Options exercisable (in shares)	500,000	500,000
Weighted average exercise price of options exercisable (in dollars per share)	$ 12.77	$ 12.77
Average remaining contractual term of options exercisable	5 years 7 months 6 days	7 years 4 months 24 days
Aggregate intrinsic value of exercisable options	$ 4,800	$ 7,800
Unrecognized stock-based compensation expense related to non-vested stock		$ 700