Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Details)

v3.21.2
Income Taxes - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Oct. 02, 2021
Sep. 26, 2020
Oct. 02, 2021
Sep. 26, 2020
Income Tax Disclosure [Abstract]        
Effective tax rate     4.50% 7.50%
Benefit (provision) for income taxes $ (33,000) $ 99,000 $ (236,000) $ 448,000
Pre-provision income (loss) $ (935,000) $ (909,000) $ (5,209,000) $ (5,983,000)