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Note 6 - Intangible Assets (Details Textual) - USD ($)
 3 Months Ended 9 Months Ended
Jun. 28, 2025
Jun. 29, 2024
Jun. 28, 2025
Jun. 29, 2024
Amortization of Intangible Assets $ 480,000 $ 188,000 $ 1,400,000 $ 562,000
Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year 481,000   481,000  
Finite-Lived Intangible Asset, Expected Amortization, Year One 1,600,000   1,600,000  
Finite-Lived Intangible Asset, Expected Amortization, Year Two 1,300,000   1,300,000  
Finite-Lived Intangible Asset, Expected Amortization, Year Three 1,300,000   1,300,000  
Finite-Lived Intangible Asset, Expected Amortization, Year Four 1,100,000   1,100,000  
Finite-Lived Intangible Asset, Expected Amortization, After Year Four $ 11,200,000   $ 11,200,000