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Note 6 - Borrowings - Long-term Debt (Details) (Parentheticals) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 25, 2021 | Jul. 07, 2021
--- | --- | --- | ---
Senior Secured Debt [Member] | Revolving Credit Facility [Member] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 90 |  |
Debt Instrument, Interest Rate, Stated Percentage | 6.92% | 3.00% |
Debt Instrument, Interest Rate, Stated Percentage | 6.92% | 3.00% |
Term Loan [Member] |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 2.97% | 2.97% |
Debt Instrument, Face Amount |  | $ 50 | $ 50
Debt Instrument, Interest Rate, Stated Percentage | 2.97% | 2.97% |

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