Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Description of Company (Details)

v3.19.2
Basis of Presentation and Description of Company (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 29, 2019
Mar. 30, 2019
Jun. 30, 2018
Mar. 31, 2018
Jun. 29, 2019
Jun. 30, 2018
Jan. 01, 2019
Dec. 29, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]                
Net income (loss) $ (1,457) $ (3,581) $ (797) $ 568 $ (5,038) $ (229)    
Cumulative effect adjustment $ (141,286)       $ (141,286)     $ (137,791)
ASU 2016-02 | Restatement Adjustment                
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]                
Cumulative effect adjustment             $ 1,623