Note F - Revenue and Contract Liabilities - Schedule of Other Revenue (Details) - USD ($) $ in Thousands  | 
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jul. 02, 2022  | 
Jul. 03, 2021  | 
Jul. 02, 2022  | 
Jul. 03, 2021  | 
|
| Other Revenue | $ 895 | $ 965 | $ 1,794 | $ 1,937 | 
| X | ||||||||||
- Definition Amount of revenue and income classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
  |