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Restructuring events (Details)
$ in Millions
3 Months Ended
Apr. 01, 2023
USD ($)
employee
Apr. 30, 2023
USD ($)
Prepared    
Restructuring    
Employee reduction | employee 13  
Prepared | Inventory writedown    
Restructuring    
Restructuring charges $ 0.4  
Prepared | Loss on disposal of property plant and equipment    
Restructuring    
Restructuring charges $ 0.2  
Grown    
Restructuring    
Restructuring costs incurred   $ 1.2