Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity and Share-Based Compensation - Narrative (Details)

v3.19.2
Stockholders' Equity and Share-Based Compensation - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 29, 2019
Jun. 30, 2018
Jun. 29, 2019
Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of stock options granted (in shares)     3,705,000  
Number of options exercised (in shares)     0  
Number of stock options forfeited (in shares)     1,250,000  
Number of stock options expired (in shares)     1,078,000  
Number of share awards issued for payment of fees.     7  
Time Based RSU        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vested (in shares)     378,000  
Performance based RSU        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vested (in shares)     44,000  
Restricted stock units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vested (in shares)     1,070,000  
Shares withheld to satisfy employee tax obligations (in shares)     95,000  
Number of share awards released to two departing board member     81  
Adjustment related employee tax obligations     $ 102  
Compensation expense $ 625 $ 156 1,180 $ 1,158
Unrecognized compensation expense $ 4,056   $ 4,056