Stock-Based Compensation - Summary of Non-Vested Options (Details) - Non Vested	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Non-vested options at beginning of period (in shares) | shares	1,113,878
Options, granted (in shares) | shares	2,468,129
Option, Vested (in shares) | shares	(521,073)
Options, Forfeited (in shares) | shares	(891,001)
Non-vested options at end of period (in shares) | shares	2,169,933
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Non-vested options at beginning of period (in dollars per share) | $ / shares	$ 2.00
Granted (in dollars per share) | $ / shares	0.61
Vested (in dollars per share) | $ / shares	2.20
Forfeited (in dollars per share) | $ / shares	1.04
Non-vested options at end of period (in dollars per share) | $ / shares	$ 0.77