v3.26.3
Note 3 - Borrowings and Credit Agreements (Details Textual)
$ / shares in Units, $ in Thousands, € in Millions, ¥ in Millions, SFr in Millions, RM in Millions
1 Months Ended 3 Months Ended 9 Months Ended
Sep. 26, 2026
USD ($)
Sep. 29, 2025
USD ($)
$ / shares
shares
Dec. 30, 2024
MYR (RM)
Jun. 30, 2020
EUR (€)
Sep. 26, 2026
USD ($)
Sep. 26, 2026
USD ($)
Sep. 27, 2025
USD ($)
Sep. 29, 2026
Sep. 26, 2026
CHF (SFr)
Sep. 26, 2026
JPY (¥)
Dec. 27, 2025
USD ($)
Sep. 24, 2025
$ / shares
Share Price | $ / shares                       $ 20.51
Less: current portion $ 16,849       $ 16,849 $ 16,849         $ 11,051  
Proceeds from Lines of Credit           6,025 $ 8,730          
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]     Effective Cost of Funds (“ECOF”) [Member]   Effective Cost of Funds (“ECOF”) [Member]              
Revolving Credit Facility [Member] | Kita Manufacturing Co. LTD. and Kita USA, Inc. [Member]                        
Line of Credit Facility, Maximum Borrowing Capacity | ¥                   ¥ 660    
Lines of credit 300       $ 300 300       ¥ 50    
Line of Credit [Member] | Ismeca [Member]                        
Line of Credit Facility, Maximum Borrowing Capacity | SFr                 SFr 2      
Lines of credit $ 0       $ 0 $ 0         0  
Number of Available Lines of Credit 1       1 1     1 1    
Capped Call Transaction [Member]                        
Payments for Derivative Instrument, Financing Activities   $ 31,400                    
Notes Converted Into Common Stock [Member]                        
Debt Conversion, Original Debt, Amount           $ 0            
Convertible Senior Notes Due 2031 [Member]                        
Debt Instrument, Face Amount   $ 287,500                    
Debt Instrument, Interest Rate, Stated Percentage   1.50%                    
Debt Instrument, Option to Purchase Additional Principal   $ 27,500                    
Long-Term Debt, Maturity Date   Jan. 15, 2031                    
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger   130.00%                    
Debt Instrument, Convertible, Threshold Trading Days   5                    
Convertible Senior Notes, Conversion Condition, Measurement Period 20 days                      
Long term Debt $ 287,500       $ 287,500 287,500         287,500  
Convertible Debt Instrument, Conversion Rate, Number of Shares Per $1,000 Principal Amount | shares   36.7975                    
Debt Instrument, Convertible, Conversion Price | $ / shares   $ 27.18                    
Convertible Debt Instrument, Conversion Premium, Percent   32.50%                    
Share Price | $ / shares                       $ 20.51
Debt Instrument, Convertible, Trading Days Before Maturity Date   51                    
Proceeds from Issuance of Debt   $ 278,900                    
Debt Instrument, Interest Rate, Effective Percentage               2.20%        
Interest Expense, Debt         1,500 4,500            
Interest Expense, Debt, Excluding Amortization         1,100 3,200            
Amortization of Debt Discount (Premium)         400 1,300            
Debt Instrument, Unamortized Discount 7,700       7,700 7,700            
Long-Term Debt 279,800       279,800 279,800         278,500  
Long-Term Debt, Fair Value 747,700       747,700 747,700            
Kita Term Loans [Member]                        
Long term Debt 1,390       1,390 1,390         1,530  
Long-Term Debt 1,400       1,400 1,400         1,500  
Less: current portion $ 200       $ 200 $ 200         200  
Kita Term Loans [Member] | Minimum [Member]                        
Debt Instrument, Interest Rate, Stated Percentage 0.05%       0.05% 0.05%     0.05% 0.05%    
Kita Term Loans [Member] | Maximum [Member]                        
Debt Instrument, Interest Rate, Stated Percentage 1.53%       1.53% 1.53%     1.53% 1.53%    
Loan Facilities [Member] | Construction Loans [Member]                        
Debt Instrument, Face Amount | €       € 10.1                
Long-Term Debt $ 5,300       $ 5,300 $ 5,300         6,300  
Less: current portion $ 1,000       $ 1,000 $ 1,000         $ 1,100  
First Facility [Member] | Construction Loans [Member]                        
Debt Instrument, Face Amount | €       € 3.4                
Debt Instrument, Interest Rate, Stated Percentage       0.80%                
Debt Instrument, Term       10 years                
Second Facility [Member] | Construction Loans [Member]                        
Debt Instrument, Face Amount | €       € 5.2                
Debt Instrument, Interest Rate, Stated Percentage       1.05%                
Debt Instrument, Term       15 years                
Third Facility [Member] | Construction Loans [Member]                        
Debt Instrument, Face Amount | €       € 0.9                
Debt Instrument, Interest Rate, Stated Percentage       1.20%                
Debt Instrument, Term       10 years                
MYR-denominated Facility [Member] | Revolving Credit Facility [Member] | Wholly Owned Subsidiary in Malaysia [Member]                        
Debt Instrument, Interest Rate, Effective Percentage 4.07%       4.07% 4.07%     4.07% 4.07%    
Proceeds from Lines of Credit | RM     RM 40                  
Debt Instrument, Basis Spread on Variable Rate     0.50%                  
Lines of credit $ 9,800       $ 9,800 $ 9,800            
US Dollar Facility [Member] | Revolving Credit Facility [Member] | Wholly Owned Subsidiary in Malaysia [Member]                        
Debt Instrument, Interest Rate, Effective Percentage 5.60%       5.60% 5.60%     5.60% 5.60%    
Debt Instrument, Basis Spread on Variable Rate         1.25%              
Line of Credit Facility, Maximum Borrowing Capacity $ 20,000       $ 20,000 $ 20,000            
Lines of credit $ 5,500       $ 5,500 $ 5,500