Net Loss Per Share - Schedule of Common Stock Equivalents Excluded from Computation of Diluted Loss per Share (Details) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Outstanding stock options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	3,131,266	2,228,904
Nonvested restricted stock and unit awards
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	1,368,998	265,569
Stock purchase warrants
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	62,181