Stock-Based Compensation - Summary of Option Activity (Details)	12 Months Ended
	Dec. 31, 2020 USD ($) $ / shares shares
Number of Options
Number of options outstanding, beginning balance (in shares) | shares	164,980
Number of options granted (in shares) | shares	200,000
Number of options exercised (in shares) | shares	0
Number of options forfeited (in shares) | shares	(2,996)
Number of options expired (in shares) | shares	(28)
Number of options outstanding, ending balance (in shares) | shares	361,956
Number of options vested or expected to vest (in shares) | shares	161,158
Number of options exercisable (in shares) | shares	161,158
Weighted Average Exercise Price
Weighted average exercise price of options outstanding, beginning of period (in usd per share) | $ / shares	$ 7.16
Weighted average exercise price of options granted (in usd per share) | $ / shares	1.57
Weighted average exercise price of options exercised (in usd per share) | $ / shares	0
Weighted average exercise price of options forfeited (in usd per share) | $ / shares	31.57
Weighted average exercise price of options expired (in usd per share) | $ / shares	5,875.19
Weighted average exercise price of options outstanding, end of period (in usd per share) | $ / shares	3.68
Weighted average exercise price of options vested or expected to vest (in usd per share) | $ / shares	6.25
Weighted average exercise price of options exercisable (in usd per share) | $ / shares	$ 6.25
Weighted Average Remaining Contractual Life (in years) and Aggregate Intrinsic Value
Weighted average remaining contractual life of options outstanding (in years)	9 years 2 months 12 days
Weighted average remaining contractual life of options vested or expected to vest (in years)	8 years 6 months
Weighted average remaining contractual life of options exercisable (in years)	8 years 6 months
Aggregate intrinsic value of options outstanding | $	$ 0
Aggregate intrinsic value of options vested and expected to vest | $	0
Aggregate intrinsic value of options exercisable | $	$ 0