Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Detail)

v3.21.4
Subsequent Events (Detail) - USD ($)
$ / shares in Units, $ in Millions
 6 Months Ended
Dec. 29, 2021
Dec. 07, 2021
Nov. 30, 2021
Private Warrant Exchange [Member]      
Subsequent Event [Line Items]      
Stock Issued During Period, Shares, New Issues     7,900,000
Private Warrant Exchange [Member] | Maximum      
Subsequent Event [Line Items]      
Class of Warrant or Right, Exercise Price of Warrants or Rights     $ 1.00
Exercise price of warrants, per share     1.00
Private Warrant Exchange [Member] | Minimum      
Subsequent Event [Line Items]      
Class of Warrant or Right, Exercise Price of Warrants or Rights     0.40
Exercise price of warrants, per share     $ 0.40
Private Warrant Exchange, Non-Inducement Shares [Member]      
Subsequent Event [Line Items]      
Stock Issued During Period, Shares, New Issues     3,500,000
Stock Subscription Agreements [Member]      
Subsequent Event [Line Items]      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights     5,000,000.0
Stock Issued During Period, Shares, New Issues     11,400,000
Class of Warrant or Right, Exercise Price of Warrants or Rights     $ 1.00
Warrants and Rights Outstanding, Term     5 years
Number Of Common Shares In Fixed Combination Issue Of shares     1
Proceeds from issuance of common stock     $ 11.4
Exercise price of warrants, per share     $ 1.00
Subsequent Event | December 7, 2021 Partitioned Notes      
Subsequent Event [Line Items]      
Convertible note, aggregate principal   $ 2.0  
Shares issued on debt conversion   2,400,000  
Subsequent Event | December 29, 2021 Partitioned Notes      
Subsequent Event [Line Items]      
Convertible note, aggregate principal $ 2.0    
Shares issued on debt conversion 2,400,000