Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details Textual)

v3.21.2
Summary of Significant Accounting Policies (Details Textual) - USD ($)
$ in Thousands
9 Months Ended
Oct. 02, 2021
Sep. 26, 2020
Jan. 02, 2021
Accounting Policies [Abstract]      
Contract asset, current $ 2,155   $ 2,776
Contract Liabilities, current 4,357   $ 4,208
Research and development costs charged to expense $ 12,467 $ 11,821