v3.26.3
Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($)
12 Months Ended
Sep. 28, 2024
Oct. 02, 2027
Oct. 03, 2026
Sep. 27, 2025
Sep. 28, 2024
Depreciation     $ 16,100,000 $ 16,500,000 $ 14,700,000
Interest Costs Capitalized     0   0
Goodwill, Impairment Loss     0 0 0
Asset, Impairment Loss $ 0   $ 0 $ 1,001,000 $ 0
Machinery and Equipment [Member] | Minimum [Member]          
Property, Plant, and Equipment, Useful Life     3 years    
Machinery and Equipment [Member] | Maximum [Member]          
Property, Plant, and Equipment, Useful Life     15 years    
Building [Member] | Minimum [Member]          
Property, Plant, and Equipment, Useful Life     10 years    
Building [Member] | Maximum [Member]          
Property, Plant, and Equipment, Useful Life     30 years    
Land Improvements [Member] | Minimum [Member]          
Property, Plant, and Equipment, Useful Life     10 years    
Land Improvements [Member] | Maximum [Member]          
Property, Plant, and Equipment, Useful Life     20 years    
Software, Internally Developed and Purchased [Member]          
Property, Plant, and Equipment, Useful Life     5 years    
Forecast [Member]          
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)   $ 980,000      
Defined Benefit Plan, Expected Future Benefit Payment   902,000      
Defined Benefit Plan, Decrease in Net Periodic Pension Cost   $ 4,000      
Decrease in Assumed Discount Rate [Member]          
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate     0.25%    
Defined Benefit Plan, Increase of Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Plan Assets     $ 272,000    
Defined Benefit Plan, Increase in Accumulated Benefit Obligation     $ 230,000