Summary of Significant Accounting Policies - Summary of Potential Common Shares Issuable (Detail) - shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	2,586,963	195,219
Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	20,928	24,124
Warrant
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	2,549,453	169,062
Restricted Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	16,022	1,104
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	560	929