v3.26.1
Note 1 - Summary of Significant Accounting Policies (Details Textual)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 27, 2026
USD ($)
shares
Jun. 28, 2025
USD ($)
shares
Jun. 27, 2026
USD ($)
shares
Jun. 28, 2025
USD ($)
shares
Dec. 27, 2025
USD ($)
Accounts Receivable, Allowance for Credit Loss $ 500   $ 500   $ 100
Capitalized Cost, Software to be Sold, Leased, or Marketed, before Accumulated Amortization 5,600   5,600   7,000
Capitalized Cost, Software to be Sold, Leased, or Marketed, Amortization Expense 700 $ 700 $ 1,439 $ 1,418  
Number of Operating Segments     3    
Number of Reportable Segments     1    
Amortization of Debt Issuance Costs 400   $ 800    
Realized Gain (Loss), Foreign Currency Transaction, before Tax (600) (400)   (400)  
Realized Gain (Loss), Foreign Currency Transaction, before Tax $ 600 $ 400   $ 400  
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | shares 4,600,000 574,000 2,700,000 638,000  
Revenue, Remaining Performance Obligation, Amount $ 4,800   $ 4,800    
Accounts Receivable, Credit Loss Expense (Reversal)     0    
Contract with Customer, Asset, after Allowance for Credit Loss 0   0    
Contract with Customer, Liability 13,800   13,800   15,300
Deferred Profit 8,258   8,258   8,626 [1]
Deferred Profit Long-term 3,400   3,400   3,700
Accumulated Other Comprehensive Income (Loss), Net of Tax $ (40,638)   $ (40,638)   $ (32,470) [1]
Software, In-Development, Internally Developed, and Purchased [Member]          
Finite-Lived Intangible Asset, Useful Life (Year) 7 years   7 years    
Minimum [Member]          
Standard Product Warranty Term (Month)     12 months    
Maximum [Member]          
Standard Product Warranty Term (Month)     36 months    
Building [Member] | Minimum [Member]          
Property, Plant, and Equipment, Useful Life 30 years   30 years    
Building [Member] | Maximum [Member]          
Property, Plant, and Equipment, Useful Life 40 years   40 years    
Building Improvements [Member] | Minimum [Member]          
Property, Plant, and Equipment, Useful Life 5 years   5 years    
Building Improvements [Member] | Maximum [Member]          
Property, Plant, and Equipment, Useful Life 15 years   15 years    
Machinery, Equipment and Software [Member] | Minimum [Member]          
Property, Plant, and Equipment, Useful Life 3 years   3 years    
Machinery, Equipment and Software [Member] | Maximum [Member]          
Property, Plant, and Equipment, Useful Life 10 years   10 years    
[1] Derived from December 27, 2025, audited financial statements