v3.25.4
Note 14 - Concentrations of Credit Risk, Significant Customers and Geographic Information - Revenue by Geographical Location (Details) - Revenue Benchmark [Member]
12 Months Ended
Dec. 27, 2025
Rate
Dec. 28, 2024
Rate
UNITED STATES | Geographic Concentration Risk [Member]    
Concentration Risk, Percentage 41.00%  
UNITED STATES | Customer Concentration Risk [Member]    
Concentration Risk, Percentage   46.00%
GERMANY | Geographic Concentration Risk [Member]    
Concentration Risk, Percentage 39.00%  
GERMANY | Customer Concentration Risk [Member]    
Concentration Risk, Percentage   32.00%
Other Country [Member] | Geographic Concentration Risk [Member]    
Concentration Risk, Percentage 20.00%  
Other Country [Member] | Customer Concentration Risk [Member]    
Concentration Risk, Percentage   22.00%