Net Loss Per Share of Common Stock - Schedule of Earnings Per Share (Details) $ / shares in Units, $ in Thousands		12 Months Ended
	Oct. 04, 2018	Dec. 31, 2019 USD ($) $ / shares shares	Dec. 31, 2018 USD ($) $ / shares shares
Earnings Per Share [Abstract]
Net loss | $		$ (38,403)	$ (17,453)
Weighted-average number of common shares used to compute basic and diluted net loss per share (in shares) | shares		24,705,980	7,950,284
Net loss per share, basic and diluted (in dollars per share) | $ / shares		$ (1.55)	$ (2.20)
Reverse stock split ratio	0.0556	0.0556