Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity and Share-Based Compensation - Restricted Stock Units (Details)

v3.20.1
Stockholders' Equity and Share-Based Compensation - Restricted Stock Units (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Dec. 28, 2019
Dec. 29, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Percentage of performance criteria met   0.00%
Compensation expense $ 3,656 $ 3,595
Weighted-average period of unrecognized compensation expense 2 years 11 months 5 days  
Restricted stock units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Awarded (in shares) 1,867 1,212
Compensation expense $ 2,753  
Unrecognized compensation expense $ 483  
Weighted-average period of unrecognized compensation expense 3 months 4 days  
Time Based RSU    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Awarded (in shares) 315 510
Performance based RSU    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Awarded (in shares) 1,552 702
Minimum | Restricted stock units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Closing price of grant (in dollars per share) $ 0.97 $ 1.54
Requisite service period 1 year  
Maximum | Restricted stock units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Closing price of grant (in dollars per share) $ 2.41 $ 2.62
Requisite service period 3 years