Equity-based Compensation - Stock Options (Details) - USD ($)			12 Months Ended
	Feb. 20, 2019	Feb. 21, 2018	Dec. 31, 2020	Dec. 31, 2019
Weighted-Average Exercise Price
Granted (in dollars per share)	$ 3.70	$ 3.80
Equity Plan [Member] | Stock Options [Member]
Stock Options (shares)
Unvested options, Beginning balance (shares)			1,072,406
Granted (shares)			0
Exercised (shares)			0
Forfeited (shares)			(16,020)
Unvested options , Ending balance (shares)			1,056,386	1,072,406
Weighted-Average Exercise Price
Unvested options, Beginning balance (in dollars per share)			$ 37.85
Granted (in dollars per share)			0
Exercised (in dollars per share)			0
Forfeited (in dollars per share)			37.80
Unvested options, Ending balance (in dollars per share)			$ 37.85	$ 37.85
Weighted-Average Remaining Contractual Term (Years)
Weighted-Average Remaining Contractual Term (Years)			7 years 7 months 24 days	8 years 7 months 28 days
Aggregate Intrinsic Value
Aggregate Intrinsic Value			$ 1,842,198	$ 8,954,271