Annual report pursuant to Section 13 and 15(d)

Net Loss Per Share - Anti-Dilutive Securities Excluded from Calculation of Diluted Earnings Per Share (Detail)

v3.20.4
Net Loss Per Share - Anti-Dilutive Securities Excluded from Calculation of Diluted Earnings Per Share (Detail)
12 Months Ended
Jun. 19, 2020
$ / shares
shares
Jan. 02, 2021
shares
Dec. 28, 2019
shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Anti-dilutive securities excluded from calculation of diluted earnings per share (in shares)   1,459,000 9,347,000
Performance stock units      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Anti-dilutive securities excluded from calculation of diluted earnings per share (in shares)     1,000
Restricted stock units      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Anti-dilutive securities excluded from calculation of diluted earnings per share (in shares)   42,000 43,000
Series A Convertible Preferred Stock      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Anti-dilutive securities excluded from calculation of diluted earnings per share (in shares)   1,251,000 2,771,000
Stock Conversion Ratio 1    
Minimum Weighted Average Common Stock Price | $ / shares $ 4.35    
Trading Days, Maintenance of Weighted Average Price, Automatic Conversion 30 days    
Stock Issued During Period, Shares, Conversion of Convertible Securities 2,620,687    
Options to purchase common stock      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Anti-dilutive securities excluded from calculation of diluted earnings per share (in shares)   166,000 6,532,000