Note 2 - Goodwill and Purchased Intangible Assets - Changes in Carrying Value of Goodwill (Details) - USD ($) $ in Thousands |
9 Months Ended | 12 Months Ended | ||||||
---|---|---|---|---|---|---|---|---|
Sep. 25, 2021 |
Dec. 26, 2020 |
|||||||
Beginning balance | $ 252,304 | [1] | $ 238,669 | |||||
Impact of currency exchange | (6,722) | 13,635 | ||||||
Sale of PCB Test business (1) | [2] | (21,899) | ||||||
Ending balance | 223,683 | 252,304 | [1] | |||||
Semiconductor Test and Inspection [Member] | ||||||||
Beginning balance | 230,724 | 218,775 | ||||||
Impact of currency exchange | (7,041) | 11,949 | ||||||
Sale of PCB Test business (1) | [2] | 0 | ||||||
Ending balance | 223,683 | 230,724 | ||||||
PCB Test [Member] | ||||||||
Beginning balance | 21,580 | 19,894 | ||||||
Impact of currency exchange | 319 | 1,686 | ||||||
Sale of PCB Test business (1) | [2] | (21,899) | ||||||
Ending balance | $ 0 | $ 21,580 | ||||||
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