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Net Loss Per Share - Schedule of Potentially Dilutive Instruments (Details) - shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Potentially dilutive instruments (in shares) 2,746,836 2,692,118
Warrants    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Potentially dilutive instruments (in shares) 2,066,576 2,066,576
Unvested restricted stock units    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Potentially dilutive instruments (in shares) 373,754 29,806
Stock options    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Potentially dilutive instruments (in shares) 306,506 595,736