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Note 8 - Intangible Assets (Tables) | 6 Months Ended
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Jul. 03, 2021
Notes Tables |
Finite-lived Intangible Assets Amortization Expense [Table Text Block] |
|  | Three Months Ended |  |  | Six Months Ended |
|  | July 3, |  |  | June 27, |  |  | July 3, |  |  | June 27, |
(In thousands) |  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Research and development |  | $ | 223 |  |  | $ | 14 |  |  | $ | 421 |  |  | $ | 28 |
Amortization of acquired intangible assets |  |  | 603 |  |  |  | 603 |  |  |  | 1,206 |  |  |  | 3,243 |
|  | $ | 826 |  |  | $ | 617 |  |  | $ | 1,627 |  |  | $ | 3,271 |

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- Definition Tabular disclosure of amortization expense of assets, excluding financial assets, that lack physical substance, having a limited useful life. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration