v3.25.4
SEGMENT INFORMATION (Operating information by segment) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jan. 03, 2026
Dec. 28, 2024
Segment Reporting, Revenue Reconciling Item [Line Items]    
Net revenue $ 199,625 $ 166,124
Cost of sales 100,670 79,040
Selling, general and administrative 40,759 (37,373)
Research and development 40,376 37,808
Operating expenses 81,135 435
Income / (Loss) from operations 17,820 86,649
Operating segments    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Net revenue 41,631 110,388
Income / (Loss) from operations 17,820 86,649
Ball Bonding Equipment    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Net revenue 110,283 59,686
Cost of sales 54,910 30,998
Selling, general and administrative 6,641 5,614
Research and development 10,256 9,646
Operating expenses 16,897 15,260
Income / (Loss) from operations 38,476 13,428
Wedge Bonding Equipment    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Net revenue 21,121 32,223
Cost of sales 12,846 17,906
Selling, general and administrative 2,396 2,122
Research and development 6,251 5,492
Operating expenses 8,647 7,614
Income / (Loss) from operations (372) 6,703
Advanced Solutions    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Net revenue 17,221 28,178
Cost of sales 9,626 6,304
Selling, general and administrative 4,535 (69,308)
Research and development 14,029 12,608
Operating expenses 18,564 (56,700)
Income / (Loss) from operations (10,969) 78,574
APS    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Net revenue 39,624 32,117
Cost of sales 18,978 14,950
Selling, general and administrative 3,298 3,001
Research and development 2,852 2,483
Operating expenses 6,150 5,484
Income / (Loss) from operations 14,496 11,683
All Others    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Net revenue 11,376 13,920
Cost of sales 4,304 8,873
Selling, general and administrative 3,773 2,900
Research and development 3,016 5,787
Operating expenses 6,789 8,687
Income / (Loss) from operations 283 (3,640)
Unallocated Corporate Expenses    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Net revenue 0 0
Cost of sales 6 9
Selling, general and administrative 20,116 18,298
Research and development 3,972 1,792
Operating expenses 24,088 20,090
Income / (Loss) from operations $ (24,094) $ (20,099)