Subsequent Events - Additional Information (Detail) - USD ($) $ in Thousands, shares in Millions	1 Months Ended	3 Months Ended
	Apr. 30, 2020	Mar. 31, 2020
Subsequent Event [Line Items]
Proceeds from exercise of common stock warrants		$ 2,045
Subsequent Event [Member]
Subsequent Event [Line Items]
Number of warrants exercised	1.0
Proceeds from exercise of common stock warrants	$ 2,300