Stock-Based Compensation - Summary and Changes of Non-Vested Restricted Stock (Details) - Restricted Stock Units (RSUs) - $ / shares	3 Months Ended	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2021
Number of RSUs
Non-vested balance at beginning of period (in shares)		23,686
Shares granted (in shares)	247,573	1,627,038
Shares vested (in shares)		(181)
Shares forfeited (in shares)		(63,530)
Non-vested balance at end of period (in shares)	1,587,013	1,587,013
Weighted Average Exercise Price
Weighted average exercise price, non-vested balance beginning (in dollars per share)		$ 2.59
Shares granted - weighted average exercise price (in dollars per share)		0.78
Shares vested - weighted average exercise price (in dollars per share)		35.30
Shares forfeited - weighted average exercise price (in dollars per share)		0.82
Weighted average exercise price, non-vested balance ending (in dollars per share)	$ 0.80	$ 0.80