Quarterly report pursuant to Section 13 or 15(d)

Warrants - Summary of Warrants Outstanding (Parenthetical) (Detail)

v3.19.1
Warrants - Summary of Warrants Outstanding (Parenthetical) (Detail) - Class Seven [Member]
Mar. 25, 2019
Class of Warrant or Right [Line Items]  
Exercisable term of warrants 18 months
Trading period 21 days